Reportability/Melanoma: Is evolving melanoma reportable with a Clark's level and Breslow's thickness are cited in the pathology report? See Discussion.
MP/H Rules/Histology--Testis: Which MP/H rule applies in coding the histology described as a "malignant mixed germ cell tumor with the following features: Histologic type: embryonal carcinoma (97%) and yolk sac tumor (3%)"? See Discussion.
Reportability--Thyroid: Is a final diagnosis of "non-invasive follicular thyroid neoplasm with papillary-like nuclear features" (NIFTP) reportable when the diagnosis comment states this tumor was historically classified as encapsulated follicular variant of papillary thyroid carcinoma? See Discussion.
EOD 2018/EOD Regional Nodes--Melanoma: Can central cancer registries code Extent of Disease (EOD) Regional Nodes as 000 based on Breslow’s depth and/or Clark’s Level (per EOD and/or Summary Stage) from a melanoma pathology only report with a localized tumor and no information on regional lymph nodes or mets. See Discussion.
Histology/Brain and CNS: How is histology coded for a 2021 diagnosis of “neuroepithelial tumor with PATZ1-EWSR1 fusion, not elsewhere classified” found during a right thalamic mass resection? See Discussion.
Solid Tumor Rules/Histology--Bladder: How is histology coded for a bladder tumor when the diagnosis is 95% large cell neuroendocrine carcinoma and 5% high grade urothelial carcinoma of no special type? See Discussion.
Histology--Vulva: How is the histology coded for vulvar intraepithelial neoplasia III (VIN III)/Squamous cell carcinoma in situ from a pathology report of the vulva, 8070/2 for squamous cell carcinoma in situ or 8077/2 for VIN III? The rules do not discuss this particular situation.
Solid Tumors Rules/Histology--Head and Neck: How is histology coded for head and neck primaries when a tumor is diagnosed as an invasive squamous cell carcinoma with multiple subtypes? See Discussion.
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