Grade, Differentiation: Do we code to the highest grade even when no grade is given at the time of initial diagnosis, but a grade is obtained on tissue removed after non-surgical treatment has occurred? See discussion.
Surgery of Primary Site/First Course Treatment--Liver: If disease progression is so rapid that the initial therapy plan is changed before patient receives any therapy, would "no therapy" be the first course? See discussion.
Histology (Pre-2007)/Grade, Differentiation--All Sites: How do we code these fields for a tumor that is predominantly a "well differentiated liposarcoma" [8851/31] that has a less predominent type of "dedifferentiated liposarcoma" [8858/33]? If we code the predominant cell type [8851/3] and the worst grade [3], the case will not pass edits because well-differentiated liposarcoma requires a differentiation code of 1. See discussion.
Reportability/Histology (Pre-2007)--Pancreas: Are the following pancreatic tumors with mention of "low grade malignant potential/borderline" reportable to SEER? If so, what histology and behavior codes should be used? See discussion.
Histology (Pre-2007)--All Sites: What code is used to represent the histology with a final diagnosis of adenocarcinoma, signet ring type when the comment suggests a "mixed histologic pattern"? See discussion.
Grade, Differentiation--Bladder: What codes are used to represent this field for the four bladder cases described in the discussion section that have a combination of grades mentioned in the pathology reports? See discussion.
EOD-Extension/EOD-Lymph Nodes--Testis: If the patient received chemo, should "bulky retroperitoneal adenopathy" be coded as involved lymph nodes in the EOD lymph node involvement field for a testicular primary treated with an orchiectomy that rendered a path diagnosis of "seminoma confined to the testicle"? See discussion.
EOD-Size of Primary Tumor--Colon: When an adenocarcinoma is stated to be arising in an adenoma and the "tumor size" stated in the final pathologic diagnosis is the same size as the mass described in the gross description, should we assume that the entire polyp has been totally/near totally replaced by tumor and code the tumor size stated in the final path diagnosis?
Histology/Primary Site--CLL/SLL: How should these fields be coded for a "chronic lymphocytic leukemia/small lymphocytic lymphoma" [CLL/SLL] diagnosed on a lymph node biopsy that is referred to by the clinician as CLL? See discussion.