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SEER Inquiry System - Report
Produced: 01/10/2025 8:56 AM
Question 20170027
Inquiry Details
References:
2007 MP/H Rules. Melanoma
Question:
MP/H Rules/Multiple primaries--Melanoma: Is a melanoma with an unknown laterality a different laterality for the purposes of applying Multiple Primaries/Histology Rule M4? See Discussion.
Discussion:
8/1/2016 Left Abdomen biopsy: Early melanoma in situ (C445-2, 8720/2).
9/2/2016 Upper back: Superficially invasive malignant melanoma (C445-9, 8720/3).
Does rule M4 apply and multiple primaries should be reported or does rule M8 apply and a single primary should be reported?
Answer:
Abstract multiple primaries following Multiple Primary Rule M4. Unknown laterality is a different laterality for the purposes of applying the MP/H rules for melanoma.
NOTE: This answer applies to cases diagnosed prior to 2018. As of 1/1/2018, early melanoma is not reportable.
