Behavior Code--Bladder/Lymphoma: Should the "in situ" designation on a bladder primary's pathology report be ignored that states a diagnosis of "in situ lymphoma"?
Behavior Code/EOD-Extension--Bladder: How are these fields coded for a bladder tumor in which the pathologist states, "there is no definite invasion identified" but the urologist states the case as T1? See Description.
Behavior--Bladder: What behavior code is used for a TURB path specimen diagnosis of "non-invasive urothelial carcinoma, no muscle found, depth of invasion cannot be assessed" when the clinician stages the case as Ta? See Discussion.
Behavior--Brain and CNS: Can hemangioblastomas occurring in the CNS be coded as /3 (malignant) based on a radiologic or clinical diagnosis by the physician? See Discussion.
Behavior--Breast: How is behavior coded when a biopsy shows in situ carcinoma with a focus suspicious for invasion and a subsequent excision/resection shows only in situ carcinoma?
Behavior--Breast: How is this field coded for a case in which the final diagnosis reports DCIS, but the CAP protocol or microscopic findings show microinvasion? See Discussion.
Behavior--Head & Neck: Should the SEER IF_Morph_3 edit be modified because it does not allow a behavior code 2 with histology 8941 [carcinoma in a pleomorphic adenoma] for a parotid primary?
Behavior--Lung: Can an in situ behavior code be used for a bronchioalveolar carcinoma of the lung when the pathologist appears to use the term bronchioalveolar to describe an in situ pattern of growth exhibited by an adenocarcinoma? Is the use of the term "pattern" in this situation indicative of in situ tumor? See Discussion.
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