Korean J Pathol.
1985 Sep;19(3):355-359.
Unknow Primary Melanoma
- Affiliations
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- 1Department of Pathology, Wonju College of Medicine, Yonsei University, Wonju, Korea.
- 2Department of Surgery, Wonju College of Medicine, Yonsei University, Wonju, Korea.
Abstract
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Unknown primary melanoma shows only metastatic malignant malanoma without obvious primary tumor. These unusual instances of unknown primary melanoma have reported incidences of 1.0~8.7%. This 51 year old patient had many intra-abdominal and mesenteric masses without visible primary tumor. The most commonly accepted explanation for unknown primary melanoma is spontaneous regression of a primary skin lesion.