title: Malignant perivascular epithelioid cell tumor of the esophagus.
abstract: Malignant perivascular epithelioid cell tumor (PEComa) is a rare tumor composed of hybrid tumor cells characterized by immunoreactivity for both melanocytic and smooth muscle markers. This paper describes the uncommon esophageal location of an 8 cm PEComa in a 75-year-old Caucasian man who was presented with ingravescent dysphagia. Although PEComas arising within the gastrointestinal tract are exceptional findings, clinicians should not exclude this class of tumors in the diagnostic investigation of a bulky lesion of the esophageal wall.
authors.affiliation: Surgical Pathology and Cytopathology Unit, Department of Medicine (DIMED), University of Padua, 35121 Padua, Italy.
authors.forename: Matteo
authors.initials: M
authors.lastname: Fassan
authors.forename: Mauro
authors.initials: M
authors.lastname: Cassaro
authors.forename: Massimo
authors.initials: M
authors.lastname: Vecchiato
authors.forename: Roberto
authors.initials: R
authors.lastname: Clemente
authors.forename: Gianmaria
authors.initials: G
authors.lastname: Pennelli
authors.forename: Stefano
authors.initials: S
authors.lastname: Merigliano
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Altavilla