2002
DOI: 10.1007/s005350200054
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Metachronous adenocarcinoma occurring at a colostomy site after abdominoperineal resection for rectal carcinoma

Abstract: Carcinomas rarely occur at the site of a colostomy. A 73-year-old man underwent abdominoperineal resection (Miles' surgical procedure) for rectal carcinoma in September 1988. He did not return to the hospital until September 1995, when he was admitted with stricture of the stoma. Neither tumor nor ulcer was detected at the stoma. The tip of the doctor's little finger was able to pass through the stoma, and manual expanding alleviated the stricture. The patient did not return to the hospital again until August … Show more

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Cited by 36 publications
(20 citation statements)
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“…Cancer family syndrome has also been suggested as a contributory factor by some authors on the basis of positive family history [4]. Others have however argued that because there were no signs of adenoma of the stoma that could be observed on a daily basis, the carcinomas might have been similar to de novo metaplasia [1]. …”
Section: Discussionmentioning
confidence: 99%
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“…Cancer family syndrome has also been suggested as a contributory factor by some authors on the basis of positive family history [4]. Others have however argued that because there were no signs of adenoma of the stoma that could be observed on a daily basis, the carcinomas might have been similar to de novo metaplasia [1]. …”
Section: Discussionmentioning
confidence: 99%
“…Various factors like adenoma-cancer sequence, stenosing stoma or bile acids have been implicated. Colon cancer presenting as cutaneous metastasis in an old operative scar has also been reported [1-6]. Possible etiological factors include an alteration in the microscopic anatomy around the scar, perhaps in the lymphatic channels, altered adhesion molecule profile or altered local immunosurveillance mechanisms leading to change in the local environs of the scar which become more receptive to metastatic tumor cells [7].…”
Section: Introductionmentioning
confidence: 99%
“…No cólon os carcinomas múltiplos podem ocorrer de maneira sincrônica ou metacrônica 8 , com uma incidência respectivamente, de 2 a 3% e de 3 a 5% 9 . Considera-se como tumor metacrônico aquele que reincide no mesmo órgão ou em segmentos remanescentes que foram parcialmente ressecados, uma vez tendo encerrado o tempo considerado de cura do tumor inicial, que é de cinco anos.…”
Section: Discussionunclassified
“…Sabe-se que o tempo mínimo necessário para que ocorra a transformação de um pólipo adenomatoso em adenocarcinoma é de dois anos, portanto toda neoplasia desenvolvida neste período não deveria ser denominada como metacrônica, devendo ser definida como sincrônica ao primeiro tumor 11 . A presença de carcinoma no sítio da colostomia não é freqüente; entretanto, o seu surgimento pode ocorrer ao longo do tempo e cursa com altos índices de morbi-mortalidade 5,8 . Considerando que a colostomia é um segmento exteriorizado do cólon, com os mesmos fatores predisponentes e desencadeantes para o desenvolvimento de tumor colônico primário, admite-se que o risco neoplásico é semelhante à de qualquer outra porção do cólon, sendo significadamente elevado quando associado à lesão metacrônica 12 .…”
Section: Discussionunclassified
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