title: Squamous carcinoma of the colon: primary or metastatic?
abstract: A patient is reported who developed a tumour of the transverse colon, which at presentation appeared histologically and clinically to be a primary squamous cell keratinizing carcinoma, arising from an area of in situ carcinoma in the colonic epithelium. However, she had had a stage 1 cervical carcinoma treated by Wertheim's hysterectomy 7 years previously and although there were no other signs of recurrence, this raised the possibility that the lesion might be metastatic. Thirty-seven previously reported cases of primary squamous carcinoma of the colon and those of squamous carcinoma metastasizing to the colon and mimicking primary lesions are reviewed.
authors.affiliation: Department of General Surgery, Southern General Hospital, Glasgow, UK.
authors.forename: A J
authors.initials: AJ
authors.lastname: McMahon
mesh_terms: D002278:Carcinoma in Situ / Q000473:pathology / Q000556:secondary; D002294:Carcinoma, Squamous Cell / Q000473:pathology* / Q000556:secondary*; D003110:Colonic Neoplasms / Q000473:pathology* / Q000556:secondary*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008875:Middle Aged; D002583:Uterine Cervical Neoplasms / Q000473:pathology*