Korean J Pathol.  1985 Sep;19(3):355-359.

Unknow Primary Melanoma

Affiliations
  • 1Department of Pathology, Wonju College of Medicine, Yonsei University, Wonju, Korea.
  • 2Department of Surgery, Wonju College of Medicine, Yonsei University, Wonju, Korea.

Abstract

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.


MeSH Terms

Incidence
Neoplasm Metastasis
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