Mycology

Hay, Roderick J.; Moore, Martin

doi:10.1002/9780470750520.ch31

Cited by 45 publications

(68 citation statements)

References 428 publications

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“…To differentiate from hyalohyphomycosis (nonpigmented hyphae), Masson-Fontana stain can be utilized to demonstrate pigment melanin in the fungus. [67] In our case both GMS stain and Masson-Fontana stain confirmed the diagnosis of phaeohyphomycosis.…”

supporting

confidence: 76%

Pheohyphomycotic cyst

Madke

Khopkar

2015

Indian Dermatol Online J

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supporting

confidence: 76%

Pheohyphomycotic cyst

Madke

Khopkar

2015

Indian Dermatol Online J

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“…Pityriasis versicolor, also known as tinea versicolor is a superficial chronically recurring fungal infection of the stratum corneum, characterized by scaly, dyspigmented irregular macules most often occurring on the trunk and extremities 1. Pityriasis versicolor is caused by Malassezia yeast, a dimorphic fungus.…”

Section: Introductionmentioning

confidence: 99%

Pityriasis versicolor: A clinicomycological and epidemiological study from a tertiary care hospital

et al. 2008

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Background:Pityriasis versicolor is a mild, chronic, usually asymptomatic superficial fungal infection of the stratum corneum, caused by Malassezia yeasts. The purpose of the present study is to assess the clinical profile of a group of patients with pityriasis versicolor and to find out the epidemiological characteristics in this part of India as well as any association, if any, with other diseases.Materials and Methods:For this purpose, 110 consecutive patients of pityriasis versicolor were evaluated clinically and diagnosis was confirmed mycologically at a tertiary care hospital in Kolkata. All data were recorded in a predesigned, pretested semi-structured schedule. The total duration of study period was 12 months.Results:Majority of the patients were young adults. Most of the patients were asymptomatic. There is prominent seasonal variation of the patients with a peak in August and September months. Most of the lesions were hypopigmented scaly macules and were KOH positive. Most commonly involved sites were chest, face and back. Seborrheic dermatitis sometimes coexisted with pityriasis versicolor and a number of patients also had diabetes mellitus and immunosuppressive conditions.Conclusions:Overall, the clinicomycological and epidemiological profile of pityriasis versicolor infection as observed in a tertiary care setting in eastern India does not differ significantly from those observed by previous workers elsewhere.

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“…While, the basidiobolomycosis caused by Basidiobolus ranarum favors the limbs or limb girdle and often affects children. [125] Only one case of our series had preceding history of intramuscular injection with possibly contaminated needle. Histologically, phycomycosis is characterized by large irregular branched septate and aseptate hyphae within multinucleated giant cells and granuloma [Figure 4].…”

Section: Discussionmentioning

confidence: 98%

Cutaneous manifestations of deep mycosis: An experience in a tropical pathology laboratory

Samaila

Abdullahi

2011

Indian J Dermatol

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Background:Cutaneous manifestations of deep mycotic infection are fraught with delayed or misdiagnosis from mainly cutaneous neoplastic lesions.Aim:This study is designed to present our experience of these mycoses in a pathology laboratory in the tropics.Materials and Methods:A clinicopathologic analysis of deep mycotic infections was conducted over a 15 years period Formalin fixed and paraffin wax processed biopsies were stained with hematoxylin and eosin, periodic acid Schiff (PAS), and Grocott's methenamine silver (GMS) for the identification of fungus specie. Patients’ bio-data and clinical information were obtained from records.Results:Twenty males and seven females presented with 6 months to 6 years histories of varying symptoms of slow growing facial swellings, nodules, subcutaneous frontal skull swelling, proptosis, nasal blockage, epistaxis, discharging leg sinuses, flank mass, convulsion and pain. Of the 27 patients, four gave antecedent history of trauma, two had recurrent lesions which necessitated maxilectomy, two presented with convulsion without motor dysfunction while one had associated erosion of the small bones of the foot. None of the patients had debilitating illnesses such as diabetes mellitus, tuberculosis, and HIV infection. Tissue histology revealed histoplasmosis (10), mycetoma (9), subcutaneous phycomycosis (6), and phaeohyphomycosis (2).Conclusion:Deep mycoses may present primarily as cutaneous lesions in immunocompetent persons and often elicit distinct histologic inflammatory response characterized by granuloma formation. Diagnosis in resource constraint setting can be achieved with tissue stained with PAS and GMS which identifies implicated fungus. Clinical recognition and adequate knowledge of the pathology of these mycoses may reduce attendant patient morbidity.

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Mycology

Cited by 45 publications

References 428 publications

Pheohyphomycotic cyst

Pheohyphomycotic cyst

Pityriasis versicolor: A clinicomycological and epidemiological study from a tertiary care hospital

Cutaneous manifestations of deep mycosis: An experience in a tropical pathology laboratory

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