Epidemiology of Pityriasis versicolor in Tunisia: Clinical Features and Characterization of Malassezia Species

CHROMOPHYTOSIS OVER THE GROIN – AN UNUSUAL PRESENTATION

10.36106/gjra/1804978 ◽

2021 ◽

pp. 60-61

Author(s):

S Suzsmi Latha ◽

Sane Roja Renuka ◽

Vignesh N R ◽

K Manoharan

Keyword(s):

Fungal Infection ◽

Clinical Features ◽

Clinical Manifestations ◽

Pityriasis Versicolor ◽

Unusual Presentation ◽

Rare Presentation ◽

Malassezia Species ◽

Tinea Versicolor

Pityriasis versicolor is also known as tinea versicolor. It is a common supercial fungal infection of the skin. Clinical features of pityriasis versicolor include either hyperpigmented or hypopigmented ne [1] scaled macules or patches. The most affected sites are the trunk, neck and proximal extremities. It rarely occurs over the groin. It is caused by yeasts of the Malassezia species, commensal of the keratinized layers of the skin which under certain conditions become pathogenic determining the clinical manifestations of the disease. We hereby report a case of Pityriasis versicolor occurring over the groin, a rare presentation.

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Distribution and molecular characterization of Malassezia species isolated from students with pityriasis versicolor in Haiphong City, 2016 - 2017

Tạp chí Y học Dự phòng ◽

10.51403/0868-2836/2021/334 ◽

2021 ◽

Vol 31 (4) ◽

pp. 37-42

Author(s):

Vo Thi Thanh Hien ◽

Do Ngoc Anh

Keyword(s):

Secondary School ◽

Secondary School Students ◽

Agar Medium ◽

Pityriasis Versicolor ◽

Molecular Tools ◽

School Students ◽

Malassezia Species ◽

Pcr Rflp ◽

Back Face

This research aims to fnd out the Malassezia species in secondary school students with pityriasis versicolor in Hai Phong City, Vietnam. A total of 110 Malassezia fungal strains from 109 students were isolated from pityriasis versicolor patients in four secondary schools in Hai Phong City from August 2016 to December 2017. These samples were cultured on mDixon agar medium containing antibiotic at 32oC for 7 days. All Malassezia isolates were correctly identifed to the species level by CHROMagarTM Malassezia medium and molecular tools (PCR-RFLP and D1/D2 region sequencing). The results showed that M. furfur and M. japonica are two species that caused pityriasis versicolor at the rate of 96.4% and 3.6%, respectively. Most of these Malassezia isolates were isolated in the back, face, and neck. M. furfur was discovered in both areas, while M. japonica was found only in the urban area. M. furfur and M. japonica were two Malassezia species causing pityriasis versicolor in secondary school students in Hai Phong City of Northern Vietnam, in which M. furfur was more common than M. japonica, whereas other Malassezia species were not detected.

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TRENDS OF CONTEMPORARY LEPTOSPIROSIS (REVIEW OF LITERATURE)

Epidemiology and Infectious Diseases (Russian Journal) ◽

10.18821/1560-9529-2018-23-2-93-100 ◽

2018 ◽

Vol 23 (2) ◽

pp. 93-100

Author(s):

Vladimir N. Gorodin ◽

D. L. Moysova ◽

V. A. Bakhtina ◽

S. V. Zotov

Keyword(s):

Organ Dysfunction ◽

Clinical Features ◽

Review Of Literature ◽

Review Of The Literature ◽

Disease Complex ◽

Modern Information ◽

Clinically Significant

A review of the literature is devoted to one of the most common and clinically significant zoonoses - leptospirosis. The article summarizes modern information on prevalence, epidemiology, etiopathogenesis and clinical features, diagnosis of leptospirosis infection over the last 10 years. The particular attention is paid to the characterization of severe forms of the disease, complex approaches to the treatment of the disease, correction of organ dysfunction and hemostasis disorders; review.

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Identification of Malassezia Species Isolated from Pityriasis Versicolor by CHROMagar-Medium

QJM ◽

10.1093/qjmed/hcab093.042 ◽

2021 ◽

Vol 114 (Supplement_1) ◽

Author(s):

Mohamed Abd El-Naeem Sallam ◽

Mohamed Taha Mahmoud El-Sayed ◽

Rania Mahmoud El-husseiny ◽

Sara Hossam Abd El-Aleem Ibrahim Shaheen

Keyword(s):

Normal Skin ◽

Previous Treatment ◽

Pityriasis Versicolor ◽

Skin Microbiome ◽

Age Group ◽

Malassezia Species ◽

Dermatological Examination ◽

High Prevalence ◽

Hot And Humid Climates

Abstract Background Pityriasis versicolor is a chronic superficial fungal infection seen worldwide, with high prevalence observed in hot and humid climates. Objectives The aim of this work was to isolate and identify Malassezia species from pityriasis versicolor using specific fast gtowth media; Chrom agar to obtain a better understanding of the role of each species in the etiology of disease. Patients and Methods This study was conducted on 70 patients with clinical diagnosis of pityriasis versicolor with positive KOH test. All of the participants were subjected to a well informed consents, full history taking including age, sex, site of the lesions and any previous treatment, full general and dermatological examination to determine site, color of the lesions and Wood's light examination. Results Our results reported 94.3% of studied patients yielded growth on culture while 5.7% did not show any growth. The predominant age group was ≥ 25 years old. Furthermore it was found that PV affected male subjects (62.90%) more than the females (37.1%). Conclusion Malassezia yeasts, although are considered a part of normal skin microbiome, is a known cause of pityriasis versicolor. PV was more common in males in the age group ≥ 25yrs. The most affected body site was the chest, the most common variant is hyperpigmented type, and the commonest isolate was M.furfur.

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Distribution of Malassezia Species from Scales of Patient with Pityriasis Versicolor by Culture in Vietnam

Open Access Macedonian Journal of Medical Sciences ◽

10.3889/oamjms.2019.091 ◽

2019 ◽

Vol 7 (2) ◽

pp. 184-186 ◽

Cited By ~ 2

Author(s):

Van Tran Cam ◽

Thuong Nguyen Van ◽

Khang Tran Hau ◽

Doanh Le Huu ◽

Phuong Pham Thi Minh ◽

...

Keyword(s):

Growth Rate ◽

Detection Rate ◽

Pathogenic Fungus ◽

Treatment Method ◽

Pityriasis Versicolor ◽

Antifungal Drugs ◽

Yeast Cells ◽

Direct Examination ◽

Malassezia Species ◽

Prevalent Species

BACKGROUND: The detection of pathogenic fungus is an important step and key to assessing the sensitivity of the antifungal drugs, and therefore choosing an effective treatment method. AIM: To identify Malassezia species from scales of a patient with pityriasis versicolor. METHODS: Three hundred patients with pityriasis versicolor who were positive with direct examination, were isolated by culture. RESULTS: Identification of Malassezia species by culture: the growth rate was 90.3%; the detection rate was 97.0%, including 11 species: M. globosa (42.4%), M. dermatitis (17.3%), M. furfur (14.4%). M. globosa was the most prevalent species in the 20-29 group 36.5%, in hyphae and yeast cells (42.2%). CONCLUSION: M. globosa is the main cause of pityriasis versicolor in Vietnam.

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