Primary squamous cell carcinoma of the sigmoid colon revealed by acute intestinal obstruction: A case report and literature review

Primary squamous cell carcinoma (SCC) of the colon is an exceptional tumor. Fewer than 150 cases have been reported in the literature up to 2014. Besides its rarity, it is often associated with other digestive neoplasms. We report the case of a 54-year-old patient with primary SCC of the colon. This case allows us to discuss the anatomo-clinical and therapeutic characteristics, as well as the etiopathogenic hypotheses of this uncommon entity.