MP/H Rules/Multiple primaries--Urinary: If topography codes C681-C689 are not included in Urinary Multiple Primary Rule M8, would a subsequent renal pelvis papillary transitional cell carcinoma be a new primary? See Discussion.
Primary site--Heme & Lymphoid Neoplasms: How is the primary site coded when a patient has a lymph node biopsy and peripheral blood that are positive for B-cell chronic lymphocytic leukemia/small lymphocytic lymphoma but refuses a bone marrow biopsy?
Reportability--Brain and CNS: Why has reportability changed for "intradural extramedullary schwannomas"? Are all "spinal" schwannomas reportable or only those stated to be "intradural"? See Discussion.
MP/H Rules/Histology--Bladder: How many primaries are accessioned and what rule applies when the patient has a mixed tumor with a urothelial carcinoma, NOS and a more specific histologic type followed by a diagnosis of urothelial carcinoma? See Discussion.
Primary site--CLL/SLL: How is the primary site coded and what rule applies when no bone marrow biopsy is performed on a patient diagnosed with chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL) which was based on the results of an axillary biopsy, positive peripheral blood and a CT scan showing multiple lymph nodes involved above and below the diaphragm? See Discussion
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