Histology (Pre-2007)--Lung: Should the histology "Polymorphic Adenocarcinoma" be coded to 8022/33 [Polymorphic Carcinoma] or 8140/33 [Adenocarcinoma, NOS]?
Histology (Pre-2007)--Colon: Must a case be specifically labeled "familial adenomatous polyposis" or is the mere presence of numerous/multiple polyps sufficient for coding the histology to FAP?
Multiple Primaries (Pre-2007)/Histology (Pre-2007)--Breast: For cases diagnosed in 2005, if a specimen contains an invasive 4.5 cm lobular carcinoma of the right breast and also has a tiny focus of intraepidermal tumors cells [Paget disease of nipple], how many cases should be abstracted and how should the histology field(s) be coded?
Histology (Pre-2007): What code is used to represent the histology if the final diagnosis between an electron microscopy report and the immunocytochemistry (ICC) differs and both histologies are specific (e.g., one report states papillary carcinoma and the other states squamous cell carcinoma)?
Multiple Primaries (Pre-2007)/Histology (Pre-2007)--Testis: If an orchiectomy specimen contains non-seminomatous mixed germ cell tumor and a separate satellite of seminoma, how many tumors should be abstracted and how should the histology field(s) be coded?
Multiple Primaries (Pre-2007)/Histology (Pre-2007)--Breast: How are the number of primaries, histologies and CS extension fields coded for breast tissue that contains separate areas of invasive ductal carcinoma, intraductal carcinoma and Paget disease? See Discussion.
Reportability/Multiple Primaries (Pre-2007)/Histology--Anus: How many primaries exist if an 11/7/03 anal lesion presents with poorly differentiated adenocarcinoma with signet ring features and extensive mucin production and the 1/9/04 wide excision has adenocarcinoma and Paget disease (intraepidermal adenocarcinoma) extends to skin margin?
Multiple Primaries (Pre-2007)--Kidney/Bladder/Renal Pelvis: Would transitional cell carcinoma of the left renal pelvis, diagnosed two years after a diagnosis of invasive bladder cancer, be a second primary when the discharge is "recurrent transitional cell carcinoma, left kidney"?