This paper analyzes 272 cases of tinea faciei that were diagnosed at our clinic between 1990 and 2009, with an average of 13.6 cases per year. The youngest patient was a 26-day-old boy, the oldest was a 89-year-old woman, and the male : female ratio was 129 : 143.
Trichophyton rubrum in 156 cases (72 males, 84 females),
Microsporum canis in 43 cases (8 males, 35 females), and
Tricophyton tonsurans in 39 cases (37 males, 2 females) accounted for 88% of the pathogenic fungi. In younger patients (elementary through high school students),
T. tonsurans and
M. canis were identified as the pathogens, but in the adult age group (20 through 80-plus years of age) the main pathogen was
T. rubrum. The patients presented with a typical rush (erythema annulare, tinea cruris) in 182 cases and with atypical rushes in 90 cases, the latter including discoid and desquamated erythema as well as steroid-modified tinea. Steroid-modified tinea was seen mainly in females, and the pathogen detected was
T. rubrum in most cases. Typical rushes were caused mainly by
T. rubrum and
M. canis.
T. tonsurans infections presented with a similar number of erythema annulare (17 cases) and discoid erythema (16 cases). Tinea faciei cases with multiple lesions had a 22% comorbidity with tinea capitis (including 9 cases with black dot ringworm), a percentage much higher than the 4% found in solitary lesion cases. Tinea at the ear was found in 42 cases (15%). A total of 100 cases had been previously diagnosed as eczema or dermatitis at a different medical institution, and 3 cases had been diagnosed as impetigo. From the latter 3 cases we isolated
M. canis. The diversity of pathogens and clinical pictures of tinea faciei often leads to misdiagnosis. Therefore, we consider it necessary to promote ‘tinea faciei’ as an independent disease type in order to increase the awareness of clinicians towards this infection.
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