ABSTRACT
The AA describe an unusual case of pilonidal sinus in a barber. The clinical analysis showed the presence, in all digital spaces, of erythemateous areas irregularly infiltrated by small fistular tracts and a keratinization area. In the first interdigital space of the left hand, the discharge of a bristle from the apex of a papule was also visibly evident. The histological examination showed the presence of a foreign body granuloma, with giant cells, lymphocyte and plasma cells, centered on a bristle fragment immersed in a collagenous matrix with abundant keratine, skin thickening and fibrous dermis. Using a probe, it was possible to follow the fistular path and obtain the discharge of several hair fragments, conglutinated by corneous scales, but it was not possible to achieve clinical cure of the lesion. The solution to the problem therefore required surgical therapy.
