John W. Hanna

Recurrent PDGFRB-Mutations in the Epithelioid Variant of Fibrous Papules

Fibrous papule (FP) is a common benign dermal mesenchymal lesion presenting as a solitary, dome-shaped papule mostly located on the nose. The morphologic spectrum is broad, and a number of variants have been described, including hypercellular, clear cell, pigmented, pleomorphic,...