MP/H Rules/Multiple primaries--Thyroid: How many primaries are reported and what is histology for the papillary carcinomas if a Classical cytomorphology with a follicular architecture is on the right and a Columnar cell cytomorphology with a follicular and papillary architecture is on the left? See Discussion.
MP/H Rules/Multiple Primaries--Thyroid: How many primaries should be coded if there is a clinical diagnosis of recurrent thyroid carcinoma in 3/08 in a patient with a history of thyroid carcinoma diagnosed in 1995 with a 2002 clinical recurrence? See Discussion.
MP/H Rules/Multiple primaries--Thyroid: How many primaries should be coded in a patient with a 4/5/08 left thyroid lobectomy diagnosis of follicular carcinoma followed by a 7/25/08 right thyroid lobectomy diagnosis of papillary carcinoma, follicular variant?
MP/H Rules/Multiple primaries--Vagina: How many primaries should be abstracted for a patient with a complex history of multiple occurrences of vaginal intraepithelial neoplasia (VAIN III) between 2001 and 2008 and invasive squamous cell carcinoma (SCCA) of the vagina diagnosed in 2006 and again in 2008? See Discussion.
MP/H Rules/Multiple primaries-Brain: Does a glioblastoma multiforme following a low grade glioma (oligodendroglioma) represent a new primary? See Discussion.
MP/H Rules/Multiple Primaries/CS Extension: How many primaries are to be accessioned when tumors are present bilaterally in the pleura and fallopian tubes? See Discussion.
MP/H Rules/Multiple Primaries/Histology--Colon: How many primaries should be reported and how is the histology field(s) coded if the left colon contains two adenocarcinomas and one mucinous adenocarcinoma arising in a villous adenoma and each has a different level of invasion? See Discussion.
MP/H Rules/Multiple Primaries/Histology--Prostate: How many primaries should be abstracted and how should the histology field(s) be coded for a case in which the pathology specimen showed adenocarcinoma in 20% of the tissue and sarcoma in 50% of the tissue? See Discussion.
MP/H Rules/Multiple primaries/Histology--Thyroid: How many primaries and what histology(ies) are coded when a patient is diagnosed with a single papillary carcinoma in the left thyroid lobe and multiple foci of papillary microcarcinoma in the right thyroid lobe? See Discussion.
MP/H Rules/Multiple primaries/Histology: How many primaries are accessioned and how is the histology coded if a patient has a 1.2 cm hepatocellular carcinoma and a 7 cm hepatocellular carcinoma, solid, acinar and trabecular type? See Discussion.
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