title: Ectopic hamartomatous thymoma--a truly rare neoplasm: report of a case.
abstract: An ectopic hamartomatous thymoma is an extremely rare benign neoplasm that commonly occurs in the lower neck region. It has distinctive pathological features that include haphazardly arranged spindle cells, epithelial cells, and mature fat tissue. Its histogenesis is still controversial. This report presents a case of a 26-year-old man with ectopic hamartomatous thymoma in the left supraclavicular region, and discusses the current knowledge regarding this type of lesion. Clinicians as well as pathologists should be aware of the existence of this disease so that it can be identified correctly.
authors.affiliation: Department of Thoracic Surgery, Saiseikai Central Hospital, Tokyo, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Sakurai
authors.forename: Masahiro
authors.initials: M
authors.lastname: Kaji
authors.forename: Kiyoshi
authors.initials: K
authors.lastname: Mukai
authors.forename: Keiichi
authors.initials: K
authors.lastname: Suemasu
mesh_terms: D000328:Adult; D002828:Choristoma / Q000473:pathology*; D003937:Diagnosis, Differential; D006222:Hamartoma / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008297:Male; D013945:Thymoma / Q000000981:diagnostic imaging / Q000473:pathology*; D013953:Thymus Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D016896:Treatment Outcome; D014463:Ultrasonography