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A Case of Colon Cancer Recurrence in the Uterus
並列摘要
Introduction: Findings of colon cancer metastases in the uterus are rare. In this case report, an isolated recurrence of colon cancer in the uterus that originated in the transverse colon has been described. It was initially thought to be a uterine leiomyoma on positron emission tomography-computed tomography (PET-CT) scan. Case Report: A 66-year-old woman with a known history of colon carcinoma presented with increasing carcinoembryonic antigen (CEA) levels six months after resection of primary adenocarcinoma of the transverse colon. Two inconclusive PET/CT scans were performed over two years in an effort to identify disease. Carcinoembryonic antigen continued to rise. Two years after the initial rise in CEA, a hypermetabolic area in the uterus, initially thought to be a uterine leiomyoma, was deemed suspicious on PET/CT scan. Total laparoscopic hysterectomy and bilateral salpingo-oophorectomy confirmed the diagnosis of metastatic adenocarcinoma of colonic origin in the uterine serosa, myometrium and endometrium. Conclusion: Approximately, 200 cases of extragenital primaries with metastasis to the female genital tract have been described. Of those, breast is the most commonly seen followed by colon cancer. While colon cancer is known to metastasize to the ovaries, metastatic spread to the uterus is possible as well [1]. Therefore, all postmenopausal women undergoing surgery for colorectal cancer should be counseled regarding possible metastatic disease in the ovaries and/ or uterus and should consider removal of these organs at the time of the initial surgery for staging of disease.
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