Resumo

NAZAR, Miguel et al. Rectal metastasis of a resected urothelial bladder cancer. Medicina (B. Aires) [online]. 2022, vol.82, n.4, pp.609-612. ISSN 0025-7680.

We present the case of a female patient with a history of high-grade urothelial carcinoma of the bladder with secondary lymph node and bone involvement, who presented with hematochezia, tenesmus and rectal pain one year after her oncological surgery. The abdomen and pelvis magnetic resonance image showed a 5 cm solid rectal lesion that stenosed the lumen and crossed the peritoneum, 6 cm away from the anal margin. The histology of this lesion reported an urothelial metastasis at the level of the lower rectum according to the patient’s history. This case identifies an atypical evolution of urothelial carcinomas (UC), highlighting an unusual route of distant metastasis. UC can, on rare occasions, metastasize to the rectum, usually in advanced or recurrent cases of the disease. As the literature available on this topic is scarce, it is crucial to highlight the importance of maintaining high suspicion in patients with a history of urothelial carcinoma and urinary/rectal symptoms (rectal pain and urgency, suprapubic pain, urinary and fecal incontinence).

Palavras-chave : Urothelial carcinoma; Transitional cell carcinoma; Bladder carcinoma rectum metastasis.

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