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SEER Inquiry System - Report
Produced: 11/23/2024 10:47 AM
Question 20170009
Inquiry Details
References:
2007 MP/H Rules. Lung, Table 1
Question:
MP/H Rules/Multiple primaries--Lung: How many primaries should be accessioned if patient has a LUL lung biopsy with squamous cell carcinoma and subsequently a station 4L node biopsy with small cell carcinoma? See Discussion.
Discussion:
Patient has only a LUL tumor on imaging. The tumor board initially states, possibly a mixed tumor, likely IIIA SCC and/or IIIA or B small cell. Later, the physician refers to it as "Stage III lung cancer, mixed histology with small cell in the lymph node and squamous cell in the LUL mass." Patient has no further workup and has declined therapy.
Answer:
Accession the case as a single lung primary since there is only a mixed tumor noted by the tumor board. Code the histology as 8045, combination/mixed small cell carcinoma and squamous cell carcinoma, per Table 1 of the Multiple Primaries/Histology Rules.
