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.
Reportability--Heme & Lymphoid Neoplasms: Is a flow cytometry immunophenotyping of peripheral blood that demonstrates a chronic lymphocytic leukemia (CLL) phenotype reportable as CLL? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned and what rule applies when a patient has a history of chronic myeloid leukemia diagnosed in 1993 followed by a diagnosis of acute myeloid leukemia arising in chronic myelogenous leukemia, blast phase? See Discussion.
Histology--Heme & Lymphoid Neoplasms: How is the histology coded for a "cutaneous diffuse large B-cell lymphoma, leg type" that has been verified as a valid diagnosis with prognostic factors including age and number of lesions on the legs?
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned and what rule applies when a subsequent diagnosis of diffuse large B-cell lymphoma (95%) and follicular lymphoma, grade 3 (5%) is made following an original diagnosis of low grade CD-10 positive B-cell lymphoma, most consistent with low grade follicular lymphoma (FL) ? See Discussion.
Primary site--Heme & Lymphoid Neoplasms: How is the primary site coded for plasma cell myeloma with radiologic evidence of multiple lytic lesions? See Discussion.
Multiple primaries--Heme & Lymphoid Neoplasms: How many primaries are accessioned when a plasmacytoma of the intervertebral disc is diagnosed in 2010 followed by a diagnosis of immature plasma cell myeloma by a right hip biopsy in 2011? See Discussion.
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