Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How many primaries are to be accessioned when a 1/27/10 bone marrow biopsy, FISH and cytogenetics reveals chronic myelogenous leukemia (CML), BCR/ABL positive, t(9;22)(q34;q11) and a 4/15/10 bone marrow biopsy reveals B-acute lymphoblastic leukemia (Blast phase of CML)?
Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How many primaries are to be abstracted when a skin (right thigh) biopsy is consistent with mycosis fungoides (cutaneous T-cell lymphoma)? See Discussion.
Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How many primaries are accessioned for a patient diagnosed in February 2010 with a plasmacytoma of the frontal skull followed by a diagnosis of smoldering myeloma by bone marrow biopsy? See Discussion.
Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How many primaries are accessioned and what histology codes are used for a 2005 diagnosis of nodular histiocytic lymphoma followed by a 2012 diagnosis of B-cell chronic lymphocytic leukemia/small lymphocytic lymphoma? See Discussion.
Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How many primaries are accessioned and what histology codes apply if a patient has a 1998 diagnosis of essential thrombocythemia and a recent clinical diagnosis of secondary myelofibrosis? See Discussion.
Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How is the histology coded when no bone marrow examination is performed but the peripheral blood flow cytometry listed several differential diagnoses and the physician states the diagnosis is small lymphocytic lymphoma? See Discussion.
Multiple primaries/Behavior--Ovary: What is the diagnosis date and histology for the primary(ies) abstracted for a patient with a mucinous cystic borderline tumor of the ovary in 2003 and a metastatic ovarian adenocarcinoma in 2011? See Discussion.
Multiple primaries--Lymphoma: Is mediastinal large B-cell lymphoma followed by classical Hodgkin lymphoma reportable as one or two primaries? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: Would it be correct to apply rule M5 for a recurrence and abstract a single primary when a patient has a history of Hodgkin disease diagnosed in 2005 followed by a diagnosis of "recurrent Hodgkin and EBV+ Diffuse large B-cell lymphoma" in 2010? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: Is this one primary or two? Follicular lymphoma grade 1 (9695/3) on 8/23/12 from an abdominal lymph node. On 1/6/14 an abdominal lymph node biopsy showed diffuse large b cell lymphoma arising from high grade follicle center cell lymphoma. Patient has been on observation.