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KMID : 0882420190940010124
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Korean Journal of Medicine
2019 Volume.94 No. 1 p.124 ~ p.128
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Malignant Melanoma of the Pancreas and Liver Mimicking a Neuroendocrine Tumor
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Noh Jin-Hee
Hwang In-Hwan
Park Joung-Ha
Yim Ji-Hye
Chai Yun
Hong Seung-Mo
Kim Myung-Hwan
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Abstract
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Among metastatic pancreatic tumors, malignant melanomas are rare. Here, we report a very rare case of a malignant melanoma that involved only the pancreas and liver, and was difficult to differentiate from a neuroendocrine tumor of the pancreas with a liver metastasis. A 65-year-old- male with no history of a malignant melanoma exhibited hypervascular hepatic and pancreatic tumors on computed tomography and contrast-enhanced endoscopic ultrasonography. He lacked lesions of the skin, eye, and gastrointestinal tract on physical examination, upper endoscopy, and a whole-body positron emission tomography-computed tomography scan; these sites are common primary sites of malignant melanoma. Finally, endoscopic ultrasound-guided pancreatic core biopsy and percutaneous ultrasonography-guided liver biopsy confirmed malignant melanoma of the pancreas and liver.
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KEYWORD
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Pancreatic neoplasms, Melanoma, Neuroendocrine tumors
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