Tinea capitis favosa, also termed favus, is a chronic 
inflammatory dermatophyte infection of the scalp usually 
caused by Trichophyton schoenleinii. It can be acquired 
during childhood or adolescence and typically persists 
into adulthood. The reported duration is wide, ranging 
from 10 days to 59 years. In addition to typical scutular 
favus on the scalp, several atypical manifestations of 
favus have been described, such as pityroides, 
psoriasiform and impetiginous forms. We describe a 55
year old woman who had crusts and scars on her scalp for 
50 years. She did not receive a correct diagnosis or 
treatment until presentation to our clinic. She was 
diagnosed with atypical favus based on the clinical 
manifestations and a mycological examination, which 
detected Trichophyton schoenleinii.