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?
MP/H Rules/Histology--Breast: What histology code is used for a single tumor, micropapillary carcinoma with components of mixed ductal and lobular carcinoma?
Race, Ethnicity/Spanish Surname or Origin: Which Spanish Surname List (from 1980 census or 1990 census) would SEER prefer us to use to code 7 in Spanish Surname or Origin? See Discussion.
Ambiguous terminology: Is the phrase "malignancy is highly considered" reportable given that the phrase "considered to be malignant" is reportable per SINQ 20061094?
Radiation Therapy--Breast: If hospital records indicate that a mammocyte intracavitary radiation therapy device was placed in the breast, but there is no follow-up documentation of radiation actually being given, should we code radiation 2 (implants) or 8 (recommended, unknown if given)?
Multiple Primaries--Brain and CNS: Multiple cavernous hemangiomas diagnosed in 1995 are treated with radiation and steroids in 1996. A 1999 MRI states there is no interval change with the lesions in selected location since 1995. How many new primaries should be reported if a 2006 MRI states there are additional cavernous hemangiomas in other parts of the brain? See Discussion.
MP/H rules/Multiple primaries: Is a 2007 cytology diagnosis of adenocarcinoma in bile duct a new primary for a patient with a 2005 diagnosis of adenocarcinoma of gallbladder? See Discussion.