title: A case of primitive non-neural granular cell tumor presenting as a single painless bleeding nodule.
abstract: Primitive non-neural granular cell tumor is a rare tumor of uncertain lineage that clinically presents as a solitary painless nodule most typically on the extremity or trunk of an adult. We report the case of a 20-year-old man with a small reddish papule on the abdomen, measuring about 2 x 3 mm, surrounded by a faint erythematous halo. Dermoscopy examination shows diffuse red color and weak whitish striae. However, only histological and immunohistochemical evaluation allowed us to perform the correct diagnosis.
authors.affiliation: Dept. Clinical Medicine and Immunological Sciences, Dermatology Section, University of Siena, Siena, Italy.
authors.forename: Luca
authors.initials: L
authors.lastname: Feci
authors.affiliation: Dept. of Oncology, Pathology Section, University of Siena, Siena, Italy.
authors.forename: Clelia
authors.initials: C
authors.lastname: Miracco
authors.affiliation: Dept. Clinical Medicine and Immunological Sciences, Dermatology Section, University of Siena, Siena, Italy.
authors.forename: Michele
authors.initials: M
authors.lastname: Fimiani
authors.affiliation: Dept. Clinical Medicine and Immunological Sciences, Dermatology Section, University of Siena, Siena, Italy.
authors.forename: Pietro
authors.initials: P
authors.lastname: Rubegni
keywords: dermoscopy; immunohistochemistry; primitive non-neural granular-cell tumor