Multiple Primaries/Histology--Hematopoietic, NOS: The subsequent primary table for 2001 and later indicates that 9863/3 [acute myelogenous leukemia (AML)] followed by 9980/3 [refractory anemia (RAEB)] is a new primary, but 9989/3 [myelodysplastic syndrome, NOS (MDS)] is not. Is the case below two primaries? See discussion.
EOD-Lymph Nodes--Testis: In coding lymph node involvement for a testicular primary, should we use code 5 (Size not stated) when there is not a pathologic size of the lymph node provided? See discussion.
Multiple Primaries (Pre-2007)--Bladder/Prostatic Urethra: Is the prostatic urethra a new primary for a case with a history of recurrent noninvasive bladder cancer that was subsequently diagnosed with transitional cell carcinoma in situ of the prostatic urethra and had a subsequent clinical diagnosis of "refractory bladder carcinoma"?
Grade, Differentiation--Lymphoma/Leukemia: Should the term "Pre-T" be added to code 5 [T-cell] in the ICD-O-3 Table 22, 6th Digit Code for Immunophenotype Designation for Lymphoma and Leukemia?
Multiple Primaries (Pre-2007)--Kidney: How many primaries are reportable in a patient treated with a bilateral nephrectomy that revealed multiple tumors within each kidney and the histology in both the left and the right kidney was "renal cell carcinoma, indeterminate type: multiple histologically identical tumors" and the clinical discharge diagnosis was "bilateral renal cell carcinoma, probably surgically cured"? See discussion.
Histology (Pre-2007)--Breast: For a path diagnosis of ductal carcinoma in situ, cribriform type with apocrine features, does the term "apocrine" modify the term cribriform or does it represent another type of ductal carcinoma in situ? See discussion.
Multiple Primaries (Pre-2007)/Primary Site/EOD-Extension--Lung: Should lung cases be counted as more than one primary when nodules removed from separate lobes of the same lung have either the same histology or they are different immunophenotypes of the same main histologic classification (e.g., adenocarcinoma)? See discussion.
Histology (Pre-2007)--Testis: What code is used to represent the histology of "mixed germ cell tumor, embryonal carcinoma and mature teratoma" of the testis? See discussion.
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