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Question: 20130003 Status
Final

References
Source 1:   ICD-O-3
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Notes:  
Source 2:  
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Question
MP/H Rules--Head & Neck: Parotid gland MASC (Mammary Analogue Secretory Carcinoma). This histology is not listed in ICD-O-3. Should we code as 8550/3 or 8502/3? Our pathologist said "that MASC is a recently descibed salivary gland tumor type which as the name implies resembles secretory carcinoma of the breast."

Discussion


Answer
Assign code 8502/3.

8550 ONLY describes acinar carcinoma, a very typical type of salivary gland tumor. Using 8550 for this case would not adequately describe the histology -- you lose the special description that includes the secretory carcinoma and the indication that it is similar to mammary cancer. Both of these elements are captured in 8502/3.

History


Last Updated
01/16/2013

Date Finalized
03/14/2013