Prevalence of different<i>Malassezia</i>species in pityriasis versicolor in central India

Chaudhary, Rahul; Singh, Sanjay; Banerjee, Tuhina; Tilak, Ragini

doi:10.4103/0378-6323.60566

Cited by 24 publications

(10 citation statements)

References 15 publications

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“…These findings corroborate with the findings of many researchers. [161920] Because the number of patients with hyperpigmented lesions of the present study was only 12, no definite conclusions can be drawn about the relationship of species and hyperpigmentation produced.…”

Section: Discussionmentioning

confidence: 75%

“…We reported M. globosa to be the predominant isolate grown in 34 (48.57%) patients. Dutta, et al .,[10] Chaudhary, et al .,[16] and Nakabayashi, et al . [17] in their studies have also reported M. globosa to be the predominant isolate.…”

Section: Discussionmentioning

confidence: 99%

“…In another study by Chaudhary et al . [16] out of 100 patients with Pityriasis versicolor, 90 were positive for KOH and out of these 90 samples 87 grew Malassezia on modified Dixon's agar.…”

Section: Discussionmentioning

confidence: 99%

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Identification and speciation of Malassezia in patients clinically suspected of having pityriasis versicolor

Shah¹,

Koticha²,

Ubale³

et al. 2013

Indian J Dermatol

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Background:Malassezia is a lipid-dependent yeast known to cause Pityriasis versicolor, a chronic, recurrent superficial infection of skin and present as hypopigmented or hyperpigmented lesions on areas of skin. If not diagnosed and treated, it may lead to disfigurement of the areas involved and also result in deep invasive infections.Aim:The aim of the present study was to identify and speciate Malassezia in patients clinically suspected of having Pityriasis versicolor.Materials and Methods:Total 139 patients suspected of having Pityriasis versicolor were evaluated clinically and diagnosis was done by Wood's lamp examination, confirmed mycologically by using KOH, cultivation on Sabouraud's dextrose agar and modified Dixon agar at a tertiary care hospital in Mumbai. The total duration of study was 12 months.Results:Majority of the patients were males (59.71%) in the age group of 21-30 years (33.81%) who were students (30.21%) by profession. The incidence of Malassezia in Pityriasis versicolor was 50.35%. The most common isolate was M. globosa (48.57%), followed by M. furfur (34.28%). Majority of the patients had hypopigmented lesions, with M. globosa as the predominant isolate. Neck was the most common site affected; 88.48% were Wood's lamp positive of which 56.91% of Malassezia isolates grew on culture. KOH mount was positive in 82.01% of which 61.40% Malassezia isolates grew on culture.Conclusions:The procedure of culture and antifungal testing is required to be performed as different species of Malassezia are involved in Pityriasis versicolor and susceptibility is different among different species. Thus, it would help to prevent recurrences and any systemic complications.

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Section: Discussionmentioning

confidence: 75%

Section: Discussionmentioning

confidence: 99%

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Identification and speciation of Malassezia in patients clinically suspected of having pityriasis versicolor

Shah¹,

Koticha²,

Ubale³

et al. 2013

Indian J Dermatol

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“…(88.4%) from Iran. [ 13 15 24 ] The growth on ordinary media like SDA with olive oil appeared after 8 to 10 days of inoculation and growth on special media like MDA appeared early, within 5 days of inoculation. Preparation of these special media is difficult and they are expensive when compared to SDA.…”

Section: Discussionmentioning

confidence: 99%

“…The culture plates and slants were examined every day for growth and culture negatives were discarded only after 3 weeks of incubation. [ 4 13 ]…”

Section: Methodsmentioning

confidence: 99%

Study of the distribution of malassezia species in patients with pityriasis versicolor in Kolar Region, Karnataka

2015

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Context:Pityriasis versicolor is a superficial, chronically recurring fungal infection caused by Malassezia species. Recently it has been revised taxanomically into 14 species, in that only 7 species have been well studied in relation to pityriasis versicolor.Aims:To identify Malassezia species isolated from patients with pityriasis versicolor and to find out any correlation between the species with clinical presentation of lesions.Settings and Design:Prospective study comprising of 100 clinically diagnosed cases of pityriasis versicolor attending Dermatology Outpatient Department over a period of 1 year.Materials and Methods:The clinical specimens were collected under aseptic precautions and subjected to culture on Sabouraud's Dextrose Agar overlaid with olive oil and modified Dixon agar. The isolates were identified by biochemical tests.Statistical Analysis Used:Statistical analysis was done using proportion, mean and chi-square test.Results:Of the 100 cases, 73% were males, 26% were females and predominant age group was 21-30 years. Out of 100 samples, 70 yielded growth. The most common isolate was M. sympodialis (50%), followed by M. furfur (32.86%), M. globosa (14.28%) and M. slooffiae (2.86%). Among 100 cases, 74% had hypopigmented and 26% had hyperpigmented lesions. M. sympodialis and M. furur were predominantly isolated from hypopigmented lesions and M. globosa and M. slooffiae were found to be more common in hyperpigmented lesions.Conclusions:M. sympodialis was the most common isolate, followed by M. furfur, M. globosa and M. slooffiae. There was no significant difference in distribution of different species in patients with hypo or hyper pigmented lesions

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Epidemiology of Superficial Fungal Infections in Asia

Rudramurthy

Shaw

2019

Clinical Practice of Medical Mycology in Asia

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Prevalence of differentMalasseziaspecies in pityriasis versicolor in central India

Abstract: M. globosa was the most common species, followed by M. sympodialis, M. furfur, M. obtusa, and M. restricta.

Cited by 24 publications

References 15 publications

Identification and speciation of Malassezia in patients clinically suspected of having pityriasis versicolor

Identification and speciation of Malassezia in patients clinically suspected of having pityriasis versicolor

Study of the distribution of malassezia species in patients with pityriasis versicolor in Kolar Region, Karnataka

Epidemiology of Superficial Fungal Infections in Asia

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