Laterality/Multiple Primaries (Pre-2007)--Ovary: Are ovarian primaries with bilateral involvement always coded to laterality 4 (bilateral)? See Description.
Marital Status: Is marital status coded to 2 [married] if the patient is legally married to a same-sex spouse (e.g., patient has a Canadian spouse and in Canada, same-sex marriages are legal)?
Measured Thickness/EOD-Extension--Melanoma: If the Clark's level is not provided, can it be estimated using the depth of invasion provided in the pathology report and associating that number with the Clark's levels identified in the SEER Summary Staging Guide?
MP/H Rules--Bladder: Should an invasive urothelial carcinoma of the bladder diagnosed in 2004 followed by an in situ urothelial carcinoma of the ureter diagnosed in 2008 be reported as multiple primaries per the three-year guideline in Rule M7 or a single primary per the subsite guideline in Rule M8? See Discussion.
MP/H Rules--Breast: How many primaries should be abstracted when a patient has a mass at 6:00 that showed poorly differentiated ductal carcinoma and a hypoechoic nodule at 9:00 that was excised with no real tumor present there though path showed angiolymphatic invasion by carcinoma throughout the entire specimen? See Discussion.
MP/H Rules--Breast: Is a 2008 invasive ductal carcinoma counted as a new primary when it follows a 2005 invasive lobular carcinoma diagnosed in the same breast? See Discussion.
MP/H Rules--Breast: Is inflammatory breast cancer always one primary per lifetime? Or is a subsequent inflammatory breast cancer a second primary if diagnosed more than five years later?
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