MP/H Rules/Histology--Colon: The final diagnosis on a path report for a colon specimen says: Is a colon specimen final diagnosis of carcinoma in situ in a serrated adenoma coded to 8010/2, 8210/2 or 8213/2?
MP/H Rules/Multiple primaries--Head & Neck: How many primaries are accessioned and what rule applies if a patient has an extensive tumor in the left ethmoid sinus and a separate tumor in the right maxillary sinus? See Discussion.
MP/H Rules/Histology--Kidney: How is the histology coded and what rule(s) apply for "cyst associated renal cell carcinoma," "cystic renal cell carcinoma," and "cystic renal cell carcinoma, clear cell type"? See Discussion.
MP/H Rules/Multiple primaries/Histology: How many primaries are accessioned and how is the histology coded if a patient has a 1.2 cm hepatocellular carcinoma and a 7 cm hepatocellular carcinoma, solid, acinar and trabecular type? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned if a patient is diagnosed with follicular lymphoma, grade 3 in 2006 and is subsequently diagnosed with follicular lymphoma, grade 2 in 2011? See Discussion.
MP/H Rules/Multiple primaries--Breast: How many primaries are accessioned if the patient has two tumors in the left breast, one that is ductal carcinoma with mucinous differentiation and the other is ductal carcinoma, NOS? See Discussion.
MP/H Rules/Multiple primaries--Kidney, renal pelvis/Bladder: How many primaries are accessioned if the patient was diagnosed with transitional cell carcinoma in situ of the renal pelvis in October 2006, TCC in situ of the bladder in July 2008 and TCC in situ of the ureter in November 2009?. See Discussion.
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