By: Edward T. F. Wei PhD
Any functional disturbance should be attended to spasms when urinating order 500mg mefenamic amex and a course of tonics prescribed spasms hands buy mefenamic 250 mg with visa. The best preventive treatment is the one that is given early muscle relaxant and alcohol cheap mefenamic 500 mg with amex, when the girl is growing from childhood to muscle relaxant 4211 order mefenamic with a mastercard girlhood spasms after gall bladder removal buy genuine mefenamic on line. When the child is old enough, as some mothers think, to go to kindergarten school, keep the little one at home. It is plenty early enough to send such a child to school when she is seven years old. If you should happen to listen to the heart of many young school children you would find it pounding away at a furious rate. Instead of taking life easy when she is nearing the crisis (puberty) or is in that period, she is hurried and rushed and crammed with her school work; the girl frequently goes to school during this period, even when she is unwell and sits there for an hour or more with wet skirts and sometimes wet shoes and stockings. Every day I see girls of all ages go past my office here in this cultured city of Ann Arbor, without rubbers, treading through the slush and water. Is it any wonder they become sickly, become victims of hysteria and suffer from menstrual disorders? Dysmenorrhea must follow such carelessness, and the parents are to blame in many cases. Be careful of your children, especially girls at this age, care less for their intellectual growth, and pay more attention to their body development, even if it should happen to be at the expense of their intellectual development. A healthy body is better than all the knowledge that can be obtained, if it goes, as it too often does, with a body that is weak and sick. Horseback riding is splendid; walking is also good exercise at a regular time each day. Iron valerate is good, in one grain doses, three times a day, in this disease, when the patient is not fleshy. Asafoetida in three to five-grain pills is a splendid tonic in such cases, and in that form is pleasant to take. The following is good when anemia is prominent: Dried Sulphate of Iron 20 grains Alcoholic extract of Sumbul 20 grains Asafoetida 10 grains Arsenious acid 1/2 grain Mix thoroughly and make twenty pills, one after each meal. Tincture of hops in doses of one-half to two teaspoonfuls is good for nervousness and sleeplessness, taken at bedtime. It can also be taken regularly four times a day in from one-half to one teaspoonful doses. In severe forms of the disease the "Rest Cure" and feeding described under Nervous Prostration should be used. Besides epilepsy, insanity, migraine, alcoholism, near relationship of parents (consanguinity) and hysteria are among the more common ancestral taints observed. Teething, worms, adherent foreskin and clitoris, closing of the internal opening of the womb, delayed menstruation, are sometimes the cause. The major attacks-or "grand mal"-in which there are severe convulsions with complete loss of consciousness, etc. In some the attacks occur during the day; in others during the night, and they may not be noticed for a long time. The convulsions begin suddenly and at first are tonic, that is, it does not change but holds on. Thc patient falls unconscious regardless of the surroundings, and the unconsciousness may be preceded by an involuntary piercing cry. This tonic spasm usually lasts from a few seconds to a half minute when it is succeeded by the clonic spasm stage. The muscles of the face are in intermittent motion, the eyes roll, the eyelids are opened and closed convulsively. The jaws move forcibly and strongly, and the tongue is apt to be caught between the teeth and bitten. A frothy saliva, which may be bloodstained from the bitten tongue, escapes from the mouth. The contraction becomes less violent and the patient gradually sinks into the condition of deep sleep, when the breathing is noisy and stertorous, the face looks red and swollen, but no longer bluish. The patient, if left alone, will sleep for some hours and then awakes and complains only of a dull headache. Suddenly, for example, at dinner time the person stops talking and eating, the eyes are fixed and staring and the face is slightly pale. The consciousness returns in a moment or two and the patient resumes conversation as if nothing had happened. In other instances there is a slight incoherency or the patient performs some almost automatic action. He may begin to undress himself, and on returning to consciousness find that he has partially disrobed. An eminent physician states: "One of my patients, after an attack, was in the habit of tearing anything he could lay his hands on, particularly books; violent actions have been committed and assaults made, frequently giving rise to questions which come before court. In the majority of cases of "petit mal" (light attacks) convulsions finally occur, at first slight, but ultimately the grand mal (major attacks) becomes well developed, and the attacks may then alternate. If the attacks are frequent and the patient has marked mental disturbance the conditions are unfavorable. Place a cork or spool or tooth-brush handle between the teeth to keep the patient from biting his tongue, but attach a stout cord to the object and hold it in that way. There are cases in which meat is injurious, and it should not be eaten more than once a day and at noon time. The patient should not go to sleep until the digestion is completed in the stomach. Baths in cold water in the morning, if possible, as the skin should be in good working condition. If that opening is small, or if the foreskin is tight it will make the child irritable and cause restless sleep. The "cover" of the "clitoris" may be tight, making the little one nervous; loosen it. If your child keeps its fingers rubbing its private organs there is reason for you to have the parts examined and the cause removed as masturbation often starts in that way. These little things often cause "big things" and I am sure "fits" can be stopped very often by looking after the private organs in both sexes. The exciting causes are exposure to cold and wet, business worries, anxieties, violent emotional excitement and specific fevers. There is at first a fine trembling, beginning in the hands or feet, gradually extending to the arms, the legs and sometimes the whole body. The muscles become rigid and shortened; the head is bent and the body is bent forward; the arms are flexed (bent) and the thumbs are turned into the palms and grasped by the fingers; the legs are bent, movement soon becomes impaired and the extremities show some stiffness in motion. There is great weakness of the muscles and it is most marked, where the trembling is most developed. There is no expression on the face, and the person has a slow and measured speech. The walk is very peculiar, and in attempting to walk the steps are short and hurried. The steps gradually become faster and faster, while the body is bent forward and the patient must keep on going faster to keep from falling. Partial, when the words are only slightly mispronounced and when some certain words cannot be pronounced at all. The sound of the word is not recognized and cannot be recalled; but sounds such as that of an engine whistle, or an alarm clock, are heard and recognized. Pharaphrasia: cannot use the right word in continued speech; the patient uses words but misplaces them. The predisposing causes are a nervous constitution, heredity, alcoholism, worry, etc. The chief exciting cause,-excessive writing, especially when it is done under a strain. In the spasm form the fingers are seized with a constant or intermittent spasm whenever the person grasps the pen. The neuralgic form is similar in symptoms but severe pain and fatigue comes with writing. The tremulous form: In this the hand when used becomes the seat of the decided tremor. The paralytic form: the chief symptoms are excessive weakness and fatigue of the part and these disappear when the pen is laid aside. General tonics, such as iron, strychnine, arsenic, and cod-liver oil may be needed to tone up the system. Persons of fifty or over are more subject to it, and it is more common in men than in women. Any disease that will cause degeneration of the arteries, helps to cause it, such as nephritis, rheumatism, syphilis, gout and alcoholism. Nephritis is one of the most certain causes, because arterio-sclerosis (hardening and decaying of the walls of the arteries) and hypertrophy of the heart are associated with nephritis, etc. In the attack:-If the bleeding is extensive the patient falls suddenly into coma, and this may soon prove fatal. If the bleeding is slight at first and gradually increases, the patient is delirious at first, then one arm, then one side, and finally the whole body may become paralyzed, and unconsciousness, and even death may come from the paralysis of the heart and breathing nerve centers. The face is red, the eyes injected, the lips are blue, the pulse is full and slow, and the breathing is slow and deep. The urine and the bowels contents may pass involuntarily or the urine may be retained. Sometimes when the case is very grave the patient does not awake from his deep sleep (coma); the pulse becomes very feeble, respiration becomes changed, mucus collects in the throat, and death may occur in a few hours or days. In other cases the clot in the brain is gradually absorbed, and the patient slowly returns to consciousness. In mild cases instead of deep coma, there may be only headache, faintness, nausea and vomiting. In many cases the paralyzed parts gradually regain their functions in a few weeks, but not always complete. When the sleep (coma) is very deep, the breathing is embarrassed, with vomiting and prolonged half consciousness and extension and complete paralysis, the danger to life is great. Raise the head and shoulders and put cold to the head (ice bag if you have it) and warmth to the feet, legs and hands. The urine must be drawn frequently in this disease, especially if there is much paralysis. The bowels, kidneys, stomach, and liver must work naturally and the stomach must not be overloaded. Too much meat must not be eaten; alcohol must be let alone; rich foods are prohibited. Apoplexy is directly due to a breaking of the wall of a blood vessel, large or small; due to a weakening, or decay, or degeneration of the wall.
However muscle relaxant without aspirin generic mefenamic 500mg visa, appropriate follow-up every 3 to zyprexa spasms buy mefenamic mastercard 6 months should be performed in these patients until radiographic resolution is achieved muscle relaxant home remedy order mefenamic 250mg overnight delivery. However uterus spasms 38 weeks 500 mg mefenamic for sale, many suggest 344 Telles et al that it may be underdiagnosed or misdiagnosed due to spasms film mefenamic 250mg fast delivery its close resemblance to dis eases cause by Candida sp, particularly of the oral cavity. G can didum is considered a resident flora in humans and has been isolated from multiple sources, including the mouth, respiratory tract, gastrointestinal tract, skin, and vagina. Bonifaz and colleagues84 re ported a total of 12 cases of oral geotrichosis and found 3 clinical varieties, with pseu domembranous being the most common type (75%), followed by hyperplastic and palatine ulcer. Pseudomembranous geotrichosis appears as white plaques on an erythematous background, which can be easily scraped off, and can be mistaken for candidiasis very easily. It mainly involves the tongue (glossitis) along with the buccal mucosa, soft palate, and rarely, the pharynx. Because treatment for oral geotrichosis is similar to treatment of candidiasis (ie, re sponds to typical anti-candidal drugs), it is thought that many cases are misdiag nosed. The villous manifestations of geotrichosis comparably resemble candidiasis as well as some viral infections. On the other hand, palatine ulcers are deeper and appear similar to other mold infections, such as mucormycosis or aspergillosis, which can be very aggressive with cerebral extension and carry a poor prognosis. The hyphae may, however, be confused easily with pseu dohyphae and blastoconidia of Candida. Molecular biology is the most accurate technique and can identify different species. Treatment of oral lesions consists of topical antifungals, such as nystatin or Gentian Violet 1%. Variable and limited data exist on Geotrichum species susceptibility for an tifungals. When a host has an intact immune system, most fungal exposure should not progress into infection. When encountering fungal infections such as candidiasis, a thorough patient history is necessary, including any risk factors, partner history, familial history of diseases that can impact the immune system (eg, diabetes, immunosuppression, asthma, autoimmune disor ders), smoking history, and hygiene regimens. It is imperative when encountering any oral fungal infections to explore the possibility of an underlying impairment; hence, it is warranted to involve the primary care physician early. In patients suspect for esophageal fungal infections, endoscopy or bronchoscopy with bronchial alveolar lavage may help to diagnose fungal infections. As a dental practitioner, early detection and diagnosis for most oral and maxillo facial fungal infections lead to decreased morbidity and mortality, especially with locally invasive infections such as Mucormycosis and Aspergillosis. Oronpharyngeal candidiasis: a review of its clinical spec trum and current therapies. The effects of inhaled corticosteroids on chronic obstructive pulmonary disease: a systematic review of randomized placebo-controlled trials. Evidence-based guidelines for the care and maintenance of complete dentures: a publication of the American College of Prosthodontists. Antiretroviral therapy with protease in hibitors has early, immune reconstitution-independent beneficial effect on Candida virulence and oral candidiasis in human immunodeficiency virus infected subjects. Factors associated with esophageal candidiasis and its endoscopic severity in the era of antiretroviral therapy. Chronic Mucocutaneous candidosis associated with hypo thyroidism: a distinct syndrome? Susceptibilitytomiconazole(base)ofisolatesfromtheoral cavity and esophagus of patients with mycosis. Clinical practice guidelines for the management candidiasis: 2009 update by the Infectious Diseases Society of America. Zygomycosis in a tertiary-care cancer center in the era of Aspergillus-active antifungal therapy: a case control observational study of 27 recent cases. Delaying amphotericin B-based frontline therapy significantly increases mortality among patients with hematologic malig nancy who have zygomycosis. Hyperbaric oxygen therapy for cutaneous/soft-tissue zygomycosis complicating diabetes mellitus. Oral presentation of disseminated histoplasmosis: a case report and literature review. Geographic distribution of endemic fungal infections among older persons, United States. Primary localized histoplas mosis: oral manifestation in immunocompetent patients. Isolation of Blastomyces dermatitidis in soil associated with a large outbreak of blastomycosis in Wisconsin. First description of oral cryptococcus neoformans causing osteomyelitis of the mandible, manubrium and third rib with associated soft tissue abscesses in an immunocompetent host. Clinical practice guidelines for the management of cryptococcal disease: 2010 update by the Infectious Diseases Society of America. The impact of culture isolation of Aspergillus spe cies: a hospital based survey of Aspergillosis. Invasive tracheal aspergillosis treated suc cessfully with voriconazole: clinical report and review of literature. Invasive aspergillosis presenting as swelling of the buccal mucosa in an immunocompetent individual. Visual loss due to paranasal sinus invasive asper gillosis in a diabetic patient. Pathological features of invasive oral aspergil losis in patients with hematological malignancies. A new pathogenic mould (formerly described as a proto zoan Coccidioides immitis pyogenes): preliminary report. The prevalence of cellular immunity to coccidioidomycosis in a highly endemic area. Skin and mucous membrane manifes tations of coccidioidomycosis: a study of thirty cases in the Brazilian states of Piau? Data on the frequency of the genus Geo trichum in various human biological products. Invasive infections caused by Tricho sporon species and Geotrichosis capitum in patients with hematological malig nancies: a retrospective multicenter study from Italy and review of the literature. Process analysis of vari ables for standardization of antifungal susceptibility testing of nonfermentative yeasts. Invasive cutaneous infection with Geotrichum candidum: sequential treatment with amphotericin B and vorico nazole. These infections also place a sig nifcant fnancial burden on the health care system because of longer hospital stays, use of expensive therapies, and increased consump tion of health care resources. The estimated cost of a single episode of candidemia is $25,000?$55,000 and a single hospitalization for aspergillosis is $60,000 (Kett 2011). Clinical pharmacists can play an important role in helping to recognize patients at risk of fungal infec tion, in providing safe and effective use of antifungal agents, and in reducing costs associated with this disease. In the presence of mucosal barrier breakdown or be the leading cause of hospital-associated bloodstream immunosuppression, these organisms become signifcant infections (Magill 2014). This fts with the 5-fold increase in pathogens that can lead to increased morbidity and mortal Candida bloodstream infections over the past 10 years and ity. Candidiasis encompasses a host of infections involving the tripling of fungal sepsis cases in the past few decades. Rates of non-albicans species are increasing in North tions in surveys used, the number of centers involved, and the America; C. Because the following free resources are available for readers infection usually starts from inhalation of the conidia, out wishing additional background information on this breaks of Aspergillus have been linked to poor air fltration, topic. Management of Candidiasis [homepage on result of the difculties in diagnosing infection, as well as a the Internet]. This European guidelines for antifungal management in leukemia and hematopoietic stem cell transplant challenge also explains why diagnostic studies tend to be recipients. Bone Marrow Transplant less sensitive in non-neutropenic patients, further limiting 2011;46:709-18. Other fungal pathogens causing disease in patients with There is a strong correlation between Candida colonization immunocompromise include Cryptococcus spp. Critically ill patients have of infection compared with historical controls; however, most dysfunctional monocytes, macrophages, and impaired patients (87%) received preemptive treatment with fuco neutrophils that put them at risk of these opportunistic patho nazole (Piarroux 2004). These tools have good negative predicative values, making them useful in deterring antifungal therapy if risk factors are not present. The low positive predic tive values of these scores may increase the risk of unnecessary Box 1-1. These methods have many limitations and may Mucosal damage lead to signifcant delays in initiating appropriate treatment. Necrotizing pancreatitis Fungal infections often have a delayed clinical course with Neonates very nonspecifc signs and symptoms. These radiographic features are also not specifc for a Solid organ transplant particular pathogen, resulting in broad treatment. Structural lung disease Blood cultures remain the gold standard for diagnosing candidemia but are only about 50% sensitive for detecting Total parenteral nutrition Candida spp. Can yeast isolation in peritoneal fuid be predicted in intensive care unit patients with peritonitis? A bedside scoring system (?Candida score) for early antifungal treatment in non-neutropenic critically ill patients with Candida colonization. Multicenter retrospective development and validation of a clinical prediction rule for nosocomial invasive candidiasis in the intensive care setting. Improvement of a clinical prediction rule for clinical trials on prophylaxis for invasive candidiasis in the intensive care unit. Validation and comparison of clinical prediction rules for invasive candidiasis in intensive care unit patients: a matched case-control study. Development and validation of a clinical prediction rule for candidemia in hospitalized patients with severe sepsis and septic shock. Blood cultures also fail to detect deep-tissue Rapid Diagnostics infections and can take several days to yield a positive result. These tests may ing to obtain, making a histopathologic diagnosis difcult, diagnose fungal infections early before signs of infections especially in patients who are unstable or thrombocytopenic. They also have improved sensitivity and specifcity Unless cultures are taken from sterile sites, it also is difcult over traditional methods and could potentially be used in con to differentiate true infection from colonization. Rapid Diagnostic Tests for Invasive Fungal Infections Test Application Sensitivity % Specificity % Limitations? There are now several rapid diagnostic tests for the detec Higher values (greater than 150 pg/mL for a single test or > tion and identifcation of Candida spp. Also, it has a good negative tant to keep in mind that most of the literature evaluating predictive value (80% or greater), making it a potentially use this test is in the setting of hematologic malignancy or sur ful tool to prevent unnecessary use of antifungals.
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Infections are caused by the traumatic implantation of the fungus into the skin spasms in stomach order mefenamic from india, or very rarely spasms pelvic floor generic mefenamic 500 mg with mastercard, by inhalation into the lungs muscle relaxant name brands discount mefenamic online master card. Secondary spread to spasms coughing cheap 250mg mefenamic visa articular surfaces muscle relaxant tv 4096 order 250mg mefenamic with amex, bone and muscle is not infrequent, and the infection may also occasionally involve the central nervous system, lungs or genitourinary tract. Sporothrix schenckii Hektoen & Perkins Morphological Description: colonies at 25 c, are slow growing, moist and glabrous,O with a wrinkled and folded surface. Some strains may produce short aerial hyphae and pigmentation may vary from white to cream to black. In some isolates, solitary, darkly-pigmented, thick walled, one-celled, obovate to angular conidia may be observed along the hyphae. Key Features: Hyphomycete characterised by thermal dimorphism and clusters of ovoid, denticulate conidia produced sympodially on short conidiophores. Morphological Description: colonies are rapid growing, brown to olivaceous-black or greyish and suede-like to foccose. Microscopically, solitary, darkly pigmented, terminal, multicellular conidia (dictyoconidia) are formed on a distinctive conidiophore with a darker terminal swelling. Note: the conidiophore proliferates percurrently through the scar where the terminal conidium (poroconidium) was formed. Stemphylium should not be confused with Ulocladium which produces similar dictyoconidia from a sympodial conidiophore, not from a percurrent conidiogenous cell as in Stemphylium. Key Features: Dematiaceous hyphomycete producing darkly pigmented, dictyoconidia from the swollen end of a percurrent conidiophore. Descriptions of Medical Fungi 189 Syncephalastrum racemosum Cohn the genus Syncephalastrum is characterised by the formation of cylindrical merosporangia on a terminal swelling of the sporangiophore. Syncephalastrum racemosum is the type species of the genus and a potential human pathogen; however, well-documented cases are lacking. The sporangiophore and merosporangia of Syncephalastrum species may also be mistaken for an Aspergillus species, if the isolate is not examined carefully. Morphological Description: colonies are very fast growing, cottony to fuffy, white to light grey, becoming dark grey with the development of sporangia. Sporangiophores are erect, stolon-like, often producing adventitious rhizoids, and show sympodial branching (racemose branching) producing curved lateral branches. The main stalk and branches form terminal, globose to ovoid vesicles which bear fnger-like merosporangia directly over their entire surface. O Key Features: Mucorales, producing sympodially branching sporangiophores with terminal vesicles bearing merosporangia. Morphological Description: colonies at 25 c are fast growing, suede-like to downy,O white with yellowish-green conidial heads. Microscopically, yeast cells are spherical to ellipsoidal, 2-6 ?m in diameter, and divide by fssion rather than budding. Histopathology: Tissue sections show small, oval to ellipsoidal yeast-like cells, 3 ?m in diameter, either packed within histiocytes or scattered through the tissue. Occasional, large, elongated sausage-shaped cells, up to 8 ?m long, with distinctive septa may be present. Key Features: Talaromyces marneffei is the only dimorphic species of Talaromyces, which grows as a yeast at 37 c. It produces a red soluble pigment on general mediaO and conidiophores have fask-shaped to acerose phialides. Physiological Tests: + Positive, Negative, v variable, w Weak, s Slow germ Tube l-Sorbose v L-arabinose D-glucitol v Fermentation Sucrose v D-arabinose -? Gliocladium (with strongly convergent phialides) and Verticillium (with straight and moderately divergent phialides) are closely related genera. Trichoderma infections in humans have been associated mostly with peritoneal dialysis, organ transplantation, and haematologic disorders (Sandoval-Denis et al. Morphological Description: colonies are fast growing, at frst white and downy, later developing yellowish-green to deep green compact tufts, often only in small areas or in concentric ring-like zones on the agar surface. Key Features: Hyphomycete with repeatedly branched conidiophores bearing clusters of divergent, fask-shaped phialides. The descriptions and species concepts provided in this publication are based upon a combination of traditional morphological criteria and the current (2016) recognised phylogenetic species (de Hoog et al. The genus Trichophyton is characterised morphologically by the development of both smooth-walled macro and microconidia. Macroconidia are mostly borne laterally directly on the hyphae or on short pedicels, and are thin or thick-walled, clavate to fusiform, and range from 4-8 x 8-50 ?m in size. Microconidia are spherical, pyriform to clavate or of irregular shape and range from 2-3 x 2-4 ?m in size. The presence of microconidia differentiates this genus from Epidermophyton, and the smooth-walled, mostly sessile macroconidia differentiates it from Lophophyton, Microsporum and Nannizzia. Those species that usually produce microconidia; macroconidia may or may not be present i. In these species the shape, size and arrangement of the microconidia is the most important character. Many laboratories have used growth on additional media and/or confrmatory tests to help differentiate between species of Trichophyton, especially isolates of T. Descriptions of Medical Fungi 195 Trichophyton concentricum Blanchard Trichophyton concentricum is an anthropophilic fungus which causes chronic widespread non-infammatory tinea corporis known as tinea imbricata because of the concentric rings of scaling it produces. Distribution is restricted to the Pacifc Islands of Oceania, South East asia and central and South america. Morphological Description: colonies are slow growing, raised and folded, glabrous becoming suede-like, mostly white to cream-coloured, but sometimes orange-brown coloured, often deeply folded into the agar which may produce splitting of the medium in some cultures. Microconidia and macroconidia are not usually produced, although some isolates will produce occasional clavate to pyriform microconidia. The slight enhancement of growth in the presence of thiamine helps to distinguish T. Key Features: clinical disease, geographical distribution and culture characteristics. Trichophyton equinum is a zoophilic fungus causing ringworm in horses and rare infections in humans. It has a worldwide distribution except for the autotrophicum strain which is restricted to australia and New Zealand. Morphological Description: colonies are usually fat, but some may develop gentle folds or radial grooves, white to buff in colour, suede-like to downy in texture, and are similar to T. Microscopically: abundant microconidia which may be clavate to pyriform and sessile or spherical and stalked are formed laterally along the hyphae. Macroconidia are only rarely produced, but when present are clavate, smooth, thin-walled and of variable size. Occasional nodular organs may be present and the microconidia often undergo a transformation to produce abundant chlamydospores in old cultures. Confrmatory Tests: Lactritmel Agar: flat spreading, white to cream-coloured, powdery to granular surface with a central downy papilla, and deep brownish-red reverse. Key Features: Microscopic morphology, culture characteristics, nicotinic acid requirement and clinical lesions in horses. Descriptions of Medical Fungi 197 Trichophyton equinum (Matruchot & Dassonville) Gedoelst a b 20 ?m c d Trichophyton equinum (a) culture, (b) microconidia, (c) macroconidia and (d) nodular organs. Trichophyton eriotrephon is a zoophilic fungus associated with hedgehogs and the epidermal mites, harboured by hedgehogs. Human infections occur most frequently on the exposed parts of the body, but tinea of the scalp and nails can also occur. Morphological Description: colonies are white, fat, powdery, sometimes downy to fuffy with a brilliant lemon-yellow reverse. Macroconidia are smooth-walled, two to six-celled, clavate, variable in size, and may have terminal appendages. Confrmatory Tests: Lactritmel Agar: White suede-like to powdery colony with brilliant yellow reverse. Geneesk a c 20 ?m b Trichophyton eriotrephon (a) culture, (b) microconidia and (c) macroconidia. Trichophyton interdigitale is an anthropophilic fungus which is a common cause of tinea pedis, particularly the vesicular type, tinea corporis, and sometimes superfcial nail plate invasion in humans. Morphological Description: colonies are usually fat, white to cream in colour with a powdery to suede-like surface and yellowish to pinkish brown reverse pigment, often becoming a darker red-brown with age. Numerous subspherical to pyriform microconidia, occasional spiral hyphae and spherical chlamydospores are present, the latter being more abundant in older cultures. Occasional slender, clavate, smooth walled, multiseptate macroconidia are also present in some cultures. Confrmatory Tests: Littman Oxgall Agar: Raised white downy colony with no reverse pigment. Key Features: culture characteristics, microscopic morphology and in vitro perforation of human hair. Descriptions of Medical Fungi 201 Trichophyton interdigitale Priestley Trichophyton interdigitale culture. Usually, no conidia are seen but some isolates, especially with subculture may produce subspherical to pyriform microconidia similar to those of T. Descriptions of Medical Fungi 203 Trichophyton mentagrophytes (Robin) Blanchard Synonymy: T. Trichophyton mentagrophytes is a zoophilic fungus with a worldwide distribution and a wide range of animal hosts including mice, guinea-pigs, kangaroos, cats, horses, sheep and rabbits. Produces infammatory skin or scalp lesions in humans, particularly in rural workers. Microconidia are hyaline, smooth-walled, and are predominantly spherical to subspherical in shape, however occasional clavate to pyriform forms may occur. Confrmatory Tests: Littman Oxgall Agar: Raised greyish-white, suede-like to downy colony. Lactritmel Agar: cultures are fat, white to cream in colour, with a powdery to granular surface. Microscopic morphology similar to that described above, with predominantly spherical microconidia, often formed in dense clusters, and varying numbers of spherical chlamydospores, spiral hyphae and smooth, thin-walled, clavate, multiseptate macroconidia. Key Features: culture characteristics, microscopic morphology and clinical disease with known animal contacts. Descriptions of Medical Fungi 205 Trichophyton quinckeanum (Zopf) MacLeod & Munde Synonymy: T. Trichophyton quinckeanum causes ?mouse favus on mice, seen as thick, yellow, saucer-shaped crusted lesions up to 1 cm in diameter called scutula. Invaded hairs are rarely seen but they may show either ectothrix or endothrix infection. The geographical distribution of this dermatophyte is diffcult to establish, but is probably worldwide. Morphological Description: colonies are generally fat, white to cream in colour, with a powdery to granular surface. Some cultures show central folding or develop raised central tufts or pleomorphic suede-like to downy areas. Numerous microconidia are borne laterally along the sides of hyphae, and are predominantly slender clavate when young. Occasional to moderate numbers of smooth, thin-walled, multiseptate, clavate to cigar-shaped macroconidia may be present.
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