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Question: 20091027 | |
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Status Final References Source 1: 2007 SEER Manual pgs: C-1061 Notes: Appendix C Source 2: pgs: Notes: Question MP/H Rules/Multiple primaries--Thyroid: 4/5/08 Lt Thyroid Lobectomy: Follicular CA. 7/25/08 Rt Thyroid Lobectomy: PAP CA, follicular variant. Which rule under Other Sites applies? Discussion Answer Rule M17 applies. These are separate primaries based on their ICD-O-3 histology codes. Follicular carcinoma is coded 8330. Papillary carcinoma, follicular variant is coded 8340. The histology codes are different at the third number. Rule M6 does not apply because these diagnoses are more than 60 days apart. History Last Updated 03/25/09 | |