MELANOMA OF UNKNOWN PRIMARY
By Gary M. White, MD
The term melanoma of unknown primary (MUP) refers to a patient with metastatic melanoma without a known primary cutaneous, mucosal or ocular melanoma.
- MUP represents 3.2% of all melanoma cases.
- 60% of cases of MUP present in the lymph nodes.
- A meta-analysis showed that MUP has a better prognosis compared with MKN (melanoma known primary) with corresponding stage [JAAD 2015;72;59].
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