Rectal Metastasis of Prostate Cancer: About a Case

Aurelien Venara, Emilie Thibaudeau, Souhil Lebdai, Stephanie Mucci, Catherine Ridereau-Zins, Rahmene Azzouzi, Antoine Hamy

Abstract


Prostate adenocarcinomas present a high risk of metastasis. We report a case of an atypical prostate cancer metastasis. A male patient presented a prostatic adenocarcinoma treated by surgery. A biological recurrence was discovered during the follow-up by an increased rate of Prostate Specific Antigen (PSA) and was treated by hormonotherapy. Several months later, there was a re-increase of the PSA rate. The CT scan showed a radiation proctitis aspect. An intermittent hormonotherapy was decided. Six months later, he presented abdominal pain. Examinations were performed and showed a rectal carcinosarcoma with prostate origins. A surgical management was realised. The outcomes were an early recurrence. A symptomatic treatment was decided. There are not any rectal localisations reported in the literature. Only loco-regional invasions of the rectum are described and no histological modification of metastasis compared to the primitive tumor has been reported. So, we report a metastasis of a prostate adenocarcinoma which transformed into a carcinosarcoma.





doi:10.4021/jocmr2010.05.309w


Keywords


Adenocarcinoma; Carcinosarcoma; Metastasis; Prostate; Rectal neoplasm

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