label: Benign Pilar-Associated Mesenchyme Neoplasm
label_lc: benign pilar-associated mesenchyme neoplasm
description: "A mesenchymal neoplasm arising from the pilar sheath of the hair follicle. It is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential. Representative examples include fibrofolliculoma, perifollicular fibroma, pilar leiomyoma, and trichogenic myxoma."