Metastatic Malignant Melanoma to Colon from Cutaneous Melanoma: A Case Report
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Abstract
Metastatic melanoma to the Gastrointestinal (GI) tract is rare and the colon is a less common site of GI tract metastasis for this cancer. We report a case of a 76-year-old male with history of cutaneous malignant melanoma since 2018 and two years later he developed metastasizing to the brain, axillary lymph node and descending colon. He was treated with stereotactic radiosurgery (SRS) for single brain metastasis, he subsequently underwent a combined left axillary node dissection and left colectomy.
Importance of long-term surveillance and role of 18F-fluorodeoxyglucose positron emission tomography-computed tomography (18F-FDG PET/CT) and colonoscopy are discussed along with the role of surgical resection in improving survival. Nevertheless, metastatic malignant melanoma to the colon is difficult to identify diagnosis and treatment, multidisciplinary team discussion is necessary to determine the most appropriate treatment strategy.
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