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.
Histology--Heme & Lymphoid Neoplasms: How is the histology coded when the pathology report states the morphologic features and immunophenotype of a low grade B-cell lymphoma are most compatible with lymphoplasmacytic lymphoma or marginal zone lymphoma?
MP/H Rules/Recurrence--Ovary: How many primaries are accessioned if a patient was diagnosed with ovarian serous carcinoma four years ago and currently has sacral and pelvic masses positive for serous carcinoma on biopsy? Should this be disease progression or a new primary? See Discussion.
Grade--Heme & Lymphoid Neoplasms: How is grade coded for a malignant non-Hodgkin lymphoma, large B-cell type, with features consistent with T-cell rich variant?
Histology/Diagnostic confirmation--Heme & Lymphoid Neoplasms: How are histology and diagnostic confirmation coded when a patient has a clinical diagnosis of lymphoma but a pathologic diagnosis of malignant neoplasm, NOS? See Discussion.
Multiple primaries/Recurrence--Heme & Lymphoid Neoplasms: How many primaries are abstracted if a patient was diagnosed with diffuse large B-cell lymphoma in 2001 and was diagnosed with diffuse large B-cell lymphoma involving the larynx in 2011? 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
Behavior--Breast: Is a breast biopsy diagnosis of "ductal carcinoma in situ with focal and very early stromal invasion" an invasive tumor with a behavior code 3?
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