International journal of dermatology · 2006
Tinea capitis in eastern Nepal.
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Jha Bibeka Nand, Garg Vijay Kumar, Agrawal Sudha, Khanal Basudha, Agarwalla Arun
Аннотация
BACKGROUND: Tinea capitis is an increasing public health concern throughout the world. The clinical types and etiological agents vary from time to time and place to place. This study was undertaken to identify the etiological agents and to determine the clinico-etiological correlation of tinea capitis in eastern Nepal.
METHODS: Sixty-nine clinically diagnosed cases of tinea capitis were enrolled in this study. Hair roots and skin scrapings were collected from each patient and subjected to microscopy and culture for identification of fungal hyphae and spores.
RESULTS: Tinea capitis accounted for 4.6% of all dermatophyte infections: 68.1% occurred in patients below the age of 11 years with a male to female ratio of 1 : 1.9. "Gray patch" was the most common clinical type (52.2%), followed by "black dot" (17.4%), seborrhoeic dermatitis (13%), alopecia areata (11.6%) and pustular (4.3%). Direct microscopy of hair was positive in 62.3% of patients. Culture positivity was found in 56.7% of patients. Common isolated organisms were Trichophyton violaceum (48.71%), T. mentagrophytes (15.38%), T. tonsurans (12.82%), Microsporum canis (7.69%), T. rubrum and M. gypseum (5.12% each), and M. audouinii and M. nanum (2.56% each).
CONCLUSIONS: Trichophyton violaceum was the most common pathogen of tinea capitis. The clinical manifestations were variable and "gray patch" was the most common clinical presentation in this part of the world.
METHODS: Sixty-nine clinically diagnosed cases of tinea capitis were enrolled in this study. Hair roots and skin scrapings were collected from each patient and subjected to microscopy and culture for identification of fungal hyphae and spores.
RESULTS: Tinea capitis accounted for 4.6% of all dermatophyte infections: 68.1% occurred in patients below the age of 11 years with a male to female ratio of 1 : 1.9. "Gray patch" was the most common clinical type (52.2%), followed by "black dot" (17.4%), seborrhoeic dermatitis (13%), alopecia areata (11.6%) and pustular (4.3%). Direct microscopy of hair was positive in 62.3% of patients. Culture positivity was found in 56.7% of patients. Common isolated organisms were Trichophyton violaceum (48.71%), T. mentagrophytes (15.38%), T. tonsurans (12.82%), Microsporum canis (7.69%), T. rubrum and M. gypseum (5.12% each), and M. audouinii and M. nanum (2.56% each).
CONCLUSIONS: Trichophyton violaceum was the most common pathogen of tinea capitis. The clinical manifestations were variable and "gray patch" was the most common clinical presentation in this part of the world.