SEER Inquiry System - Search

MP/H Rules/Multiple primaries--Colon: Does rule M7 apply here (A frank malignant or in situ adenocarcinoma and an in situ or malignant tumor in a polyp are a single primary)? Can the frank malignant adenocarcinoma be any specific type of adenocarcinoma for this rule to apply?

A patient has 2 synchronous tumors in the ascending colon. The first is grade 3 adenocarcinoma with signet ring differentiation and focal mucinous features (8255/3). The second is grade 2-3 adenocarcinoma in a tubulovillous adenoma (8263/3).

MP/H Rules/Multiple primaries--Colon: This is an unusual case of multifocal colon cancer. The case is staged pT4b,N1b. Per our MP rules, this will be 4 separate primaries. Would this be an exception to the rules; if not now, possibly in future versions of the MP rules for colon cancer? See discussion.

MP/H Rules/Multiple primaries--Head & Neck: How many primaries are accessioned and what rule applies if a patient has an extensive tumor in the left ethmoid sinus and a separate tumor in the right maxillary sinus? See Discussion.

MP/H Rules/Multiple primaries--Head & Neck: If a 1991 neuroesthesioblastoma [9522/3] of the nasal cavity has subsequent recurrences of the same histology but later "recurs" in 2008 with "sarcoma, NOS, high grade" on a biopsy and a "high grade fibrosarcomatous transformation of esthesioneuroblastoma" [8810/3] on resection, should the subsequent tumor be reported as a new primary if the clinician continues to refer to the tumor as a "recurrence"? See Discussion.

MP/H Rules/Multiple primaries--Kidney, renal pelvis: In a patient who was never disease free because of multiple recurrences of invasive transitional cell carcinoma of the bladder originally diagnosed in 2004, is an invasive high grade urothelial carcinoma of the renal pelvis diagnosed in 2010 a new primary? See Discussion.

MP/H Rules/Multiple primaries--Kidney: In a patient with a history of renal cell carcinoma, would a new primary be accessioned per Rule M10 for a soft tissue mass in the renal fossa not stated to be a metastasis but that was referred to as recurrent renal cell carcinoma, clear cell per the excision pathology report? See Discussion.

MP/H Rules/Multiple primaries--Liver: How many primaries of the same site and histology are reported if tumors appear years apart but neither is surgically removed? See Discussion.

MP/H Rules/Multiple primaries--Lung: How many primaries are accessioned when the right lower lobe lung has two adenocarcinomas, both with lepidic pattern, if the tumor board staged these tumors as separate primaries? See Discussion.

MP/H Rules/Multiple primaries--Lung: How many primaries are to be reported for an adenocarcinoma of the lung in the right middle lobe of the lung and bronchioalveolar carcinoma, non-mucinous type in the right upper lobe? See Discussion.

MP/H Rules/Multiple primaries--Lung: How many primaries should be accessioned if patient has a LUL lung biopsy with squamous cell carcinoma and subsequently a station 4L node biopsy with small cell carcinoma? See Discussion.