Small-cell carcinoma of the colon is an extremely rare tumour, with poorly understood pathogenesis and unestablished treatment guidelines. The first case was documented in 1919, and only about 100 cases of this condition have been reported to this date. In this case report, we present a case of sigmoid squamous cell carcinoma that eventually led to bowel perforation and was diagnosed on histopathology after emergent surgical intervention. Additionally, we also review the incidence, epidemiology, pathogenesis, immunohistological markers, neogenomics and therapeutic strategies for the same. © BMJ Publishing Group Limited 2021. No commercial re-use. See rights and permissions. Published by BMJ.
Sachi Singhal, Rohan Bir Singh, Rashmika Potdar. Metastatic squamous cell carcinoma of the colon: a conundrum in colorectal malignancies. BMJ case reports. 2021 Apr 15;14(4)
PMID: 33858889
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