Multiple Primaries/Histology--Lymphoma: If an oral mucosa, right hard palate biopsy contains a composite lymphoma [low-grade follicular + chronic lymphocytic leukemia], how many tumors should be abstracted and how should the histology field(s) be coded?
Multiple Primaries/Histology--Lymphoma: If a gastric biopsy demonstrates large B cell lymphoma arising in a low grade MALT lymphoma, how many tumors should be abstracted and how should the histology field(s) be coded? See Discussion.
Multiple Primaries/Histology--Lymphoma/Leukemia: How many primaries and what histologies are coded when a path diagnosis for a cervical/neck mass demonstrates classical Hodgkin's lymphoma on a background of chronic lymphocytic leukemia?
Multiple primaries/Histology--Heme & Lymphoid Neoplasms: Should a single primary be accessioned with the histology coded 9732/3 [multiple myeloma] when a patient is diagnosed initially with a plasmacytoma on an excision and a single bone marrow biopsy showed only 4% plasma cells, then the subsequent workup led to a clinical diagnosis of multiple myeloma? See Discussion.
Multiple primaries/Histology--Heme & Lymphoid Neoplasms: Is a 2010 diagnosis of ALK+ anaplastic T cell lymphoma following a 2008 diagnosis of follicular B cell lymphoma, grade 1 a new primary? If so, how is the histology coded? See Discussion.
Multiple primaries/Histology--Heme & Lymphoid Neoplasms: How many primaries should be reported for a bone marrow biopsy diagnosis of "lymphoproliferative disorder, small cell lymphocytic lymphoma/small cell lymphocytic leukemia consistent with marginal zone lymphoma"?
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.