Malignant Melanoma of the Pancreas and Liver Mimicking a Neuroendocrine Tumor
10.3904/kjm.2019.94.1.124
- Author:
Jin Hee NOH
1
;
In Hwan HWANG
;
Joung Ha PARK
;
Ji Hye LIM
;
Yun CHAI
;
Seung Mo HONG
;
Myung Hwan KIM
Author Information
1. Department of Internal Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea. mhkim@amc.seoul.kr
- Publication Type:Case Report
- From:Korean Journal of Medicine
2019;94(1):124-128
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
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.
