title: A case of pseudosarcoma associated with type 3 squamous cell carcinoma of the esophagus: report of a case.
abstract: A case of a primary esophageal pseudosarcoma associated with an independent type 3 tumor is described herein. A 60-year-old male presented with dysphagia and chest discomfort. A clinical evaluation revealed a type 3 tumor in the middle of the esophagus, which was diagnosed after a biopsy to be squamous cell carcinoma (SCC). A subsequent gross examination of the subtotally removed esophagus revealed a polypoid tumor adjacent to the type 3 tumor. Histologically, the polypoid mass was composed of SCC and mesenchymal components without a transitional zone. The tumor was thus classified as a pseudosarcoma of the esophagus, and was unique in that this appeared to have developed independently from the SCC.
authors.affiliation: Department of Surgery, Hokkaido Gastroenterology Hospital, Sapporo, Japan.
authors.forename: S
authors.initials: S
authors.lastname: Kubota
authors.forename: T
authors.initials: T
authors.lastname: Morita
authors.forename: K
authors.initials: K
authors.lastname: Murakawa
authors.forename: Y
authors.initials: Y
authors.lastname: Hida
authors.forename: Y
authors.initials: Y
authors.lastname: Miyasaka
authors.forename: M
authors.initials: M
authors.lastname: Fujita
authors.forename: H
authors.initials: H
authors.lastname: Suzuki
authors.forename: T
authors.initials: T
authors.lastname: Motohara
authors.forename: H
authors.initials: H
authors.lastname: Kato
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology* / Q000601:surgery; D004938:Esophageal Neoplasms / Q000473:pathology* / Q000601:surgery; D006801:Humans; D007150:Immunohistochemistry; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D012509:Sarcoma / Q000473:pathology* / Q000601:surgery