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--Heme & Lymphoid Neoplasms: How many primaries are accessioned for a diagnosis of bilateral extranodal orbital lymphoma when the same histology is present in both orbits?
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned if a patient is diagnosed with follicular lymphoma, grade 3 in 2006 and is subsequently diagnosed with follicular lymphoma, grade 2 in 2011? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned when biopsies of the left and right tonsils show diffuse large B-cell lymphoma and there is no other evidence of involvement? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned when a patient has a biopsy diagnosis of extraosseous plasmacytoma followed fourteen days later with a diagnosis of multiple myeloma on imaging? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned if a patient shows evidence of "MDS as well as essential thrombocytosis and JAK2 mutation positive polycythemia vera" 18 years after a diagnosis of "thrombocytosis and probable polycythemia that progressed to probable myelofibrosis"? See Discussion
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are to be accessioned when a patient was diagnosed in 2003 with malignant lymphoma, mixed cell type, follicular in the inguinal lymph nodes and was recently diagnosed with follicular lymphoma (by a neck lymph node biopsy) involving the neck and mediastinal lymph nodes?
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are to be accessioned when the patient is diagnosed with an acute neoplasm (diffuse large B-cell lymphoma) per a pathology report and is subsequently diagnosed clinically with a chronic neoplasm (chronic lymphocytic leukemia/small lymphocytic lymphoma) less than 21 days later? 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--Heme & Lymphoid Neoplasms: How many primaries are accessioned if patient initially diagnosed with granulocytic sarcoma on a vocal cord biopsy is subsequently diagnosed with acute myeloid leukemia more than 21 days later? See Discussion.
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