Multiple primaries--Heme & Lymphoid Neoplasms: If a neoplasm is listed under the Transformations section in the Heme DB, is this always a new primary? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned and what is the histology for each if a bone marrow diagnosis reveals co-existent systemic mastocytosis and a lymphoplasmacytic neoplasm? See Discussion.
Primary site--Heme & Lymphoid Neoplasms: How is primary site coded for a myeloid sarcoma (granulocytic sarcoma) arising in the chest wall in a patient that has a negative bone marrow biopsy? See Discussion.
Primary site--Heme & Lymphoid Neoplasms: Is the primary site coded to C778 or C779 for a diffuse large B cell lymphoma with abdominal lymph node, neck lymph node, and spleen involvement?
Primary site--Heme & Lymphoid Neoplasms: How is the primary site to be coded for a 2010 diagnosis of follicular lymphoma involving the spleen and lymph nodes above and below the diaphragm?
Date of diagnosis--Heme and Lymphoid Neoplasms: Is the date of diagnosis coded to the date a bone marrow biopsy revealed "plasma cell neoplasm; plasma cells are < 10%" or the date a diagnosis of myeloma was noted in the Discharge Summary? See Discussion.
Reportability/Histology--Heme & Lymphoid Neoplasms: Is a diagnosis of "small B-cell non-Hodgkin lymphoproliferative disorder" reportable? If so, how is the histology to be coded? 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.