Multiple Primaries--Lymphoma: How many primaries should be reported when a 5/99 diagnosis of stage III follicular large cell lymphoma [9698/3] of the conjunctiva [C69.0] is followed with a 6/01 diagnosis of small cleaved lymphoma [9591/3] of the breast [C50.9]? See discussion.
Multiple primaries--Lymphoma: Is mediastinal large B-cell lymphoma followed by classical Hodgkin lymphoma reportable as one or two primaries? See Discussion.
Reportability/Chemotherapy--Hematopoietic, NOS: Is pyridoxine-responsive sideroblastic anemia (SA) reportable and is pyridoxine coded as chemotherapy for SA and refractory anemia with ringed sideroblasts (RARS)? See Discussion.
Primary Site/Histology--Lymphoma: How are these fields coded when the final diagnosis per the pathology report is, "Soft tissue and skeletal muscle, left thigh--Large B cell lymphoma with polyclonal and mature t-cells, involving the soft tissue"?
Reportability/Behavior Code--Bone Marrow: Is T-cell large granular lymphocytic leukemia SEER reportable? Pages 102, 147, 156, 160-162 and 167 of the ICD-O-3 list it as 9831/1, but on page 17 this is listed as 9831/3.
Multiple primaries--Lymphoma: Should a second primary lymphoma be accessioned if the reporting hospital disagrees with the final diagnosis stated on a review of slides? See Discussion.
Primary Site/Grade, Differentiation, Cell indicator--Lymphoma: Will a Grade, Differentiation code of 6 [B-cell] for a lymphoma coded to primary site C80.9 [unknown] fail edits? See Discussion.
Multiple Primaries/Histology--Mycosis Fungoides/Cutaneous T cell Lymphoma: Physicians often use the terms cutaneous T cell lymphoma (CTCL) and mycosis fungoides interchangeably and yet the SEER Single versus Subsequent Primaries of Lymphatic and Hematopoietic Diseases table indicates that these 2 diagnoses represent separate primaries. Do these cases represent one primary? If so, what histologic type should they be coded to?
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