MP/H Rules/Multiple Primaries--Breast: How many primaries are abstracted when bilateral breasts contain DCIS? Is a physician statement referring to this situation as one primary ignored? See Discussion.
MP/H Rules/Multiple Primaries--Brain and CNS: How many primaries are abstracted if a patient was diagnosed with metastatic malignant melanoma to the brain in 2003 and subsequently was diagnosed with meningeal melanomatosis? See Discussion.
MP/H Rules/Multiple Primaries--Bladder: The new multiple primary rule M7 states that tumors diagnosed more than three years apart are multiple primaries. Does this apply to in situ bladder tumors that occur more than three years apart and to an in situ tumor that occurs three years after an invasive tumor?
MP/H Rules/Multiple Primaries--Bladder/Renal Pelvis: Is a non-invasive papillary transitional cell carcinoma of the bladder diagnosed one year after the occurrence of an invasive papillary transitional cell carcinoma of the renal pelvis reported as one or two primaries?
MP/H Rules/HistologyCorpus Uteri: How should histology be coded for a "carcinosarcoma with high grade sarcomatous component within a polyp, with greater component of endometrioid carcinoma and foci papillary serous carcinoma within polyp"?
MP/H Rules/Histology: The 2010 SEER Manual has omitted some useful information in the Histologic Type ICD-O-3 section, specifically the statement of "Do not revise or update the histology code based on subsequent recurrence(s)". Will this statement be added to the revisions of the MPH rules? See Discussion.
MP/H Rules/Histology: In the absence of a tissue diagnosis, should the histology field be coded based on the findings of a suspicious cytology or a CT scan that clinically confirmed the diagnosis? See Discussion.
MP/H Rules/Histology: In the MP/H Manual, where is the documentation indicating "focal" is not a term that can be used to code histology? See Discussion.
MP/H Rules/Histology: How is histology coded for a diagnosis of "poorly differentiated endometrioid adenocarcinoma intermixed with osteoid sarcomatous component, consistent with malignant mixed mullerian tumor with heterologous (osteosarcoma) elements"? Is malignant mixed mullerian tumor synonymous with carcinosarcoma? See Discussion.