Primary Site/Histology (Pre-2007)/Sarcoma: How do you code these fields for a vulvar tumor diagnosed by FISH analysis as "extra-osseous Ewing sarcoma?" See Description.
Histology (Pre-2007): Is 8524 [lobular mixed with other carcinoma] or 8490 [signet ring cell carcinoma] used to represent a diagnosis of "infiltrating lobular with signet ring features?"
Date of Diagnosis: When the clinical information on a scan indicates a history of cancer, how do you code the month and/or year of diagnosis given these terms: "early in year," "late in year," "2-3 months ago," "7 months ago," "new diagnosis." See Description.
Histology--Hematopoietic, NOS: Because histology 9895/3 [Acute myeloid leukemia with multilineage dysplasia] was recognized as a distinct entity by WHO with too few cases of the subtypes [with or without prior MDS] to warrant separate histology codes for each, should the wording for the non-bold definitions in ICD-O-3 be changed to the following in both the alpha and numeric sections? See Description.
AML with multilineage dysplasia and prior MDS
AML with multilineage dysplasia and without prior MDS
EOD-Pathologic Review of Number of Lymph Nodes Positive and Examined: How are nodes positive/examined coded for a positive FNA of a lymph node followed by a subsequent lymph node dissection? See Description.
Multiple Primaries (Pre-2007)--Breast: For a patient with a remote history of lobular breast carcinoma, would a new diagnosis of lobular breast carcinoma with DCIS be a new primary, even though the physician designates it as recurrent? See Description.
Histology (Pre-2007)/Primary Site/Diagnostic Confirmation: How would these fields be coded for a diagnosis of cholangiocarcinoma based on clinical findings only? See Discussion.
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