NCIt definition : A benign cutaneous neoplasm of uncertain differentiation that usually affects children
and young adults and presents as a usually solitary well-circumscribed dermal nodule,
predominantly in the face. It is a multilobulated neoplasm composed of nests of epithelioid
cells with pale eosinophilic cytoplasm and vesicular nucleus. The nests of neoplastic
cells are usually separated by collagenous or myxoid stroma.;