Solid Tumor Rules (2018)/Histology--Head & Neck: What specific table(s) in the 2021 Head and Neck Solid Tumor Rules if any, apply to tumors of the lip? See Discussion.
Reportability/Solid Tumor Rules (2018)--Kidney: Should clarification (Notes) be added to Table 1 of the 2018 Kidney Solid Tumor Rules regarding the use of clear cell papillary renal cell carcinoma (8323) and sarcomatoid renal cell carcinoma (8312) as these histologies conflict with the ICD-O-3.2? See Discussion.
Solid Tumor Rules (2018)/Histology--Kidney: What is the histology code for succinate dehydrogenase-deficient renal cell carcinoma (SDHD)? See Discussion.
Solid Tumor Rules (2018)/Histology--Brain and CNS: Should the new malignant term pituitary blastoma be added to Table 3 of the 2018 Malignant Central Nervous System (CNS) and Peripheral Nerves Solid Tumor Rules? See Discussion.
Solid Tumor Rules (2018)/Primary Site--Brain and CNS: Should the updated note for optic nerve glioma be included in both the 2018 Solid Tumor Rules for Malignant Central Nervous System (CNS) and Peripheral Nerves, Note 6, and the Non-Malignant CNS Tumors, Note 5? See Discussion.
Reportability/Histology--Pancreas: Is a diagnosis of insulin-producing (insulinoma) epithelioid neoplasm reportable if made 2021 and later? If so, is the histology coded as 8151/3 per the ICD-O-3.2 Coding Table? See Discussion.
Solid Tumor Rules (2018)/Histology--Pancreas: How is the histology coded, and what H Rule applies, for a 2021 diagnosis when the pathological diagnosis is neuroendocrine tumor (NET) G1 or NET G2, but clinically, the tumor is stated to be insulinoma? See Discussion.
Solid Tumor Rules (2018)/Histology--Corpus Uteri: How is histology coded for cases of carcinosarcoma/malignant mixed Mullerian (MMMT) tumor diagnosed 2021 and later? See Discussion.
Reportability/Histology--Kidney: Is hybrid oncocytic chromophobe tumor reportable for cases diagnosed 2021 and later? If so, how is the histology coded? See Discussion.
Primary Site/Histology--Sarcoma: Do the clarifications in the 2018 ICD-O-3 Update Table regarding undifferentiated high-grade pleomorphic sarcoma (8830/3) apply to cases diagnosed 1/1/2021 and later with the implementation of ICD-O-3.2? See Discussion.