Melanocytic Panfolliculoma: A Case Report of a Rare Benign Follicular Tumor

We present a case of a rare pigmented PF presenting on actinically damaged skin in an 83-year-old man, which was clinically concerning for malignancy. This tumor arose near an area of atypical squamous proliferation and has evidence of infundibular, outer root sheath, and matrical differentiation and foci of heavy melanin pigmentation and increased melanocytes. We propose the novel designation of “melanocytic PF,” akin to melanocytic matricoma but with panfollicular differentiation.
Source: The American Journal of Dermatopathology - Category: Pathology Tags: Brief Report Source Type: research