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.
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: 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/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/Multiple primaries - - Colon: Is a colon tumor reported as "recurrent at the anastomotic junction" just over one year after the diagnosis of a T4 colon tumor to be counted as a new primary? See Discussion.
MP/H Rules/Multiple primaries - - Melanoma: How many primaries are reported when a patient presents with a malignant melanoma (NOS) and a separate lentigo maligna, both on right chest? See Discussion.
MP/H Rules/Multiple primaries -- Ovary: How many primaries are to be accessioned and what rule applies when a patient has a serous carcinoma of the right ovary treated with neoadjuvant chemotherapy followed by a debulking surgery that revealed a serous tubal intraepithelial carcinoma of the left fallopian tube?
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?
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