Tumor of the follicular infundibulum.
A histopathologically unique tumor originating from the infundibular portion of vellus hair follicles is presented and the clinical and microscopic features of such a case are described. A superficial subepidermal shelf of trichilemmal structure differentiates the lesion from the lobular acanthosis of trichilemmoma.
D006201:Hair Diseases / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012878:Skin Neoplasms / Q000473:pathology*