MP/H Rules/Multiple primaries--Lung: Should a July 2011 left lower lobe mass with adenocarcinoma be accessioned as an additional primary per Rule M7 or as the same primary per Rule M12 if it is diagnosed subsequent to a September 2010 right upper lobe/right middle lobe lobectomy with clear cell adenocarcinoma in one nodule and adenocarcinoma in another nodule? See Discussion.
MP/H Rules/Histology--Lung: How many primaries are accessioned if a pathology report for a right upper lobectomy with a chest wall resection describes the disease as 1) two foci of poorly differentiated non-small cell carcinoma, 2) mixed adenocarcinoma and non-mucinous bronchioalveolar carcinoma, each present as a separate focus? See Discussion.
Histology/Primary site--Heme & Lymphoid Neoplasms: How are these fields coded if a bone marrow biopsy demonstrates diffuse infiltration by B-cell lymphoma/leukemia which consists of medium-sized cells with Burkitt morphology and the flow cytometry has no evidence of leukemia or lymphoma?
Primary Site--Brain and CNS: Are meninges surrounding cranial nerves cranial meninges [C700] or a part of the specific nerve's sheath? Is the primary site for an optic nerve sheath meningioma coded to optic nerve [C723] or cranial meninges [C700]?
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are to be accessioned, and what rule applies, when the patient has a history of diffuse large B-cell lymphoma diagnosed in 2003, a follicular lymphoma diagnosed in 2009, and another diagnosis of follicular lymphoma in 2010? Is the application of the multiple primary rules effected if it is unknown whether the patient was ever disease free? See Discussion.
MP/H Rules/Histology--Lung: What would the histology code be for a wedge bx of the left lung, lower lobe, that was read out as well differentiated adenocarcinoma with micropapillary features?
MP/H Rules/Histology--Lung: How is the histology coded for a single tumor of the left lower lobe that is stated to be a sarcomatoid carcinoma with features of carcinosarcoma, spindle cell carcinoma, poorly differentiated squamous cell carcinoma and giant cell carcinoma?
Reportability--Heme & Lymphoid Neoplasms: Are the terms EBV positive B-cell lymphoproliferative disorder with or without the term "of the elderly" and iatrogenic EBV positive lymphoproliferative disorder reportable? See Discussion.
Histology--Heme & Lymphoid Neoplasms: Is histology coded to AML, NOS [9861/3] for a bone marrow biopsy with a diagnosis of acute myeloid leukemia evolving from myelodysplastic syndrome (MDS) if the cytogenetics revealed trisomy 13? See Discussion.
MP/H Rules/Histology--Esophagus: Will the AJCC TNM 7 having separate stage groupings for squamous cell carcinoma and adenocarcinoma result in coding histology for a tumor of mixed squamous cell carcinoma and adenocarcinoma to squamous cell carcinoma because it has the poorer prognosis? See Discussion.
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