Reportability/Histology--Colon: Is a colon tumor reportable if the pathology report final diagnosis is high grade dysplasia but CAP protocol histologic type designation is adenocarcinoma in situ? See Discussion.
Reportability/Histology--Hematopoietic, NOS: Does the presence of sideroblasts on a bone marrow biopsy confirm a diagnosis of refractory anemia with sideroblasts?
Reportability/Histology--Heme & Lymphoid Neoplasms: How many primaries are accessioned and how is histology coded when a patient has a history of chronic myelogenous leukemia diagnosed in 1997 and a "blast crisis with myeloid markers" of this disease in 2010? See Discussion.
Reportability/Histology--Heme & Lymphoid Neoplasms: Is Monoclonal B-lymphocytosis of uncertain significance (MLUS) reportable? If so, what is the correct histology code?
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.
Reportability/Histology--Soft Tissue: Is superficial CD34 positive fibroblastic tumor reportable and if so what histology code should be used? See Discussion.
Reportability/Histology: Is the diagnosis "low-grade neuroendocrine neoplasm/carcinoid tumor with expression of gastrin (consistent with gastrinoma)" reportable with the histology code 8240/3 [carcinoid] or 8153/3 [malignant gastrinoma]? See Discussion.
Reportability/History (Pre-2007)/Behavior Code--Ovary: Should the matrix principal in Rule F be applied to code a 2002 right ovary case to 8462/3 [Papillary serous borderline ovarian tumor] when peritoneal washings reveal the same histology?