SEER Inquiry System - View
Source 1: 2007 MP/H Rules
Source 2: Beyond the Basics
Notes: Slide 6
MP/H Rules/Multiple primaries--Kidney, renal pelvis, bladder, ureter: How many primaries should be abstracted for the following scenario? See discussion.
Patient had TCC in situ of the renal pelvis in Oct. 2006. Then he had TCC in situ of the bladder in July, 2008. Per MP/H rule M8, this is a single primary. Then the patient has TCC in situ of the ureter diagnosed in Nov. 2009. Is this a new primary, since sequence 1 was diagnosed in Oct. 2006 (M7)? Or does the 3 year time frame start from the last recurrence (i.e., July, 2008) making this all part of the first primary?
Abstract two primaries for this scenario per Rule M7. The first primary is the renal pelvis in Oct. 2006; the second primary is the ureter in Nov. 2009. The bladder tumor in July 2008 is not a new primary per Rule M8.
Compare the diagnosis date of the current (most recent) tumor to the diagnosis date of the original tumor. This applies even if the patient had six occurrences in-between these dates; you still compare the current tumor to the diagnosis date of the original tumor and ignore recurrences in this process.
See slide 6 of the Beyond the Basics presentation, http://www.seer.cancer.gov/tools/mphrules/training_adv/SEER_MPH_Gen_Instruc_06152007.pdf