EOD-Size of Primary Tumor--All Sites: Is there a hierarchy for using information from clinical tests (scans, radiography) to determine clinical tumor size? When the size on a radiographic report prior to pathologic diagnosis is smaller than the size of the tumor on the radiographic report that is post pathologic diagnosis, which tumor size should be used? See discussion.
Chemotherapy: Should radiosensitizing chemotherapy agents (i.e., drugs typically coded as treatment for cancer) be coded as treatment when they are given in combination with radiation therapy with the intention of enhancing that treatment? See discussion.
Multiple Primaries/Histology--Lymphoma: What is the primary site(s) for a patient who had a lymph node biopsy with the histology of "large B cell lymphoma arising in the setting of low grade B cell lymphoma c/w marginal zone B cell lymphoma with plasmacytic features"? See discussion.
Histology (Pre-2007)/Grade, Differentiation--Lung: What code is used to represent the histology for a lung biopsy of "non-small cell carcinoma with features of poorly differentiated adenocarcinoma"? See discussion.
Primary Site/Histology (Pre-2007): What codes are used to represent site and histology for BSO specimen with a diagnosis, "Left and right adnexa: poorly differentiated serous carcinoma. Comment: The carcinoma occurs as multiple nodules within adnexal soft tissues. Direct involvement of ovaries is not seen, supporting an extraovarian origin." See discussion.
Primary Site: What code is used to represent the primary site for a "teratocarcinoma with features of embryonal carcinoma" removed from the thigh muscle in a patient with x-ray negative testicles? See discussion.
Grade, Differentiation--Breast: Is "histological grade" another way of saying "tubule formation" which would result in the following case having a Bloom-Richardson (BR) score of 7 which would be coded to grade 2? See discussion.
Reportability: A "gastrointestinal stromal tumor" (GIST) is not always stated to be "malignant" in the path report even though the tumor appears to meet criteria for malignancy. Is the tumor SEER reportable? See discussion.
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