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Colonic metastasis from breast carcinoma: a case report

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BackgroundColonic metastasis from breast carcinoma is very rare. Here, we report a case of colonic metastasis from breast carcinoma.Case presentationThe patient was a 51-year-old woman. She had upper abdominal pain,… Click to show full abstract

BackgroundColonic metastasis from breast carcinoma is very rare. Here, we report a case of colonic metastasis from breast carcinoma.Case presentationThe patient was a 51-year-old woman. She had upper abdominal pain, vomiting, and diarrhea, repeatedly. We performed abdominal contrast-enhanced computed tomography (CT) to investigate these symptoms. The CT scan revealed a tumor in the ascending colon with contrast enhancement and showed an expanded small intestine. For further investigation of this tumor, we performed whole positron emission tomography-computed tomography (PET-CT). The PET-CT scan revealed fluorodeoxyglucose uptake in the ascending colon, mesentery, left breast, and left axillary region. Analysis of biopsy samples obtained during colonoscopy revealed signet ring cell-like carcinoma. Moreover, biopsy of the breast tumor revealed invasive lobular carcinoma. Therefore, the preoperative diagnosis was colonic metastasis from breast carcinoma. Open ileocecal resection was performed. The final diagnosis was multiple metastatic breast carcinomas, and the TNM classification was T2N1M1 Stage IV.ConclusionsWe presented a rare case of colonic metastasis from breast carcinoma. PET-CT may be useful in the diagnosis of metastatic breast cancer. When analysis of biopsy samples obtained during colonoscopy reveals signet ring cell-like carcinoma, the possibility of breast cancer as the primary tumor should be considered.

Keywords: carcinoma; breast; breast carcinoma; colonic metastasis; metastasis breast

Journal Title: World Journal of Surgical Oncology
Year Published: 2017

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