Date therapy initiated/Systemic/Surgery Sequence--Breast: How are these fields coded when a patient has chemotherapy after a sentinel lymph node biopsy and has a lumpectomy after completing chemotherapy? See Discussion.
MP/H Rules/Histology--Kidney: How is histology coded when it is described in the pathology report as "Histologic type: Clear cell (conventional) renal cell carcinoma. Percent of sarcomatoid component: 10%"? See Discussion.
CS Tumor Size--Breast: How is this field coded for DCIS that is present in scattered small foci over five of eight slides, and the greatest aggregate dimension measures 0.5 cm? See Discussion.
MP/H Rules/Multiple Primaries--Head and Neck: How many primaries are to be accessioned for a case in which a second tumor occurs in an area previously involved by direct extension from a prior primary located in an adjacent site? See Discussion.
Multiplicity Counter--Head & Neck: How is this field coded when a patient has carcinoma in the same location as a previous primary but it is unknown if there was a disease-free interval? See Discussion.
CS Site Specific Factor--Head & Neck: How is Site Specific Factor 2 coded when the pathologist describes regional lymph nodes as "matted"? See Discussion.
CS Lymph Nodes--Head and Neck: How is this field coded when a positive neck FNA is followed by a neck dissection that contains one of seventeen positive lymph nodes? See Discussion.
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