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Squamous cell carcinoma of middle rectum: Literature review
Radwan Kassir1, Sylviane Baccot1, Nadia Bouarioua2
1Department of General Surgery, CHU Hospital, Jean Monnet University, Saint Étienne, France.
Introduction:
Squamous cell carcinoma SCC of the rectum is a distinct entity. We report a very rare case of squamous cell carcinoma of the middle rectum.
Presentation Of Case:
The patient was a 62-year-old woman who presented with a history of rectal bleeding and discomfort. Colonoscopy revealed a polypoid tumour of the middle rectum. Biopsies of this mass revealed a poorly differentiated SCC of the rectum. CT scan of the chest, abdomen and pelvis was negative for distal metastases. The patient received combined chemo-radiation followed by surgical excision. The postoperative period was uncomplicated.
Discussion:
The pathogenesis of rectal SCC remains unclear and diagnosis is often delayed. Diagnostic criteria have been proposed. MRI of the rectum and trans-rectal endoscopic ultrasound R-EUS provide essential information to plan a therapeutic approach. The squamous cell carcinoma antigen level is not suitable for initial diagnosis of rectal SCC. Most authors conclude that the surgery is the gold standard treatment. Tumour stage is the most important prognostic predictor of SCC.
Conclusion:
Squamous cell carcinoma of the rectum is a distinct entity. Before the final choice of treatment is made, digestive surgeons should bear in mind this rare tumour.
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