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Report Produced: 05/03/2026 03:06 AM

Report Question ID Question
20110081 MP/H Rules/Histology--Pancreas: What is the correct histology code for pancreatic neoplasia III (PanIN III) for cases diagnosed in 2007 and later?
20200023

Solid Tumor Rules (2018)/Histology--Endometrium: Is the histology for a serous carcinoma, high-grade endometrial primary 8441/3 (serous carcinoma) or 8461/3 (high grade serous carcinoma)? See Discussion.
20160025

MP/H Rules/Histology: What is the correct histology code for a NUT midline carcinoma?

20110095 Reportability/Histology: Is the diagnosis "low-grade neuroendocrine neoplasm/carcinoid tumor with expression of gastrin (consistent with gastrinoma)" reportable with the histology code 8240/3 [carcinoid] or 8153/3 [malignant gastrinoma]? See Discussion.
20110070 MP/H Rules/Histology--Endometrium: How is histology coded when clear cell adenocarcinoma [8310/3] is stated to involve a "1.5 cm endometrial polyp"? See Discussion.
20210004

Solid Tumor Rules (2018)/Histology--Colon: What is the histology for a 2020 pathology report final diagnosis showing invasive adenocarcinoma, poorly differentiated with signet ring cell features and signet-ring cell carcinoma in the synoptic report? See Discussion.
20180078

Solid Tumor Rules (2018)/Histology--Breast: How is histology coded and which rule applies for a single in situ tumor that is described as an encapsulated papillary carcinoma (EPC) with conventional ductal carcinoma in situ (DCIS)? See Discussion.
20180113

Solid Tumor Rules (2018)/Histology--Lung: What is the histology code of a 2018 lung cancer case with invasive non-mucinous adenocarcinoma? For non-mucinous carcinoma/adenocarcinoma, the Solid Tumor Rules have codes for microinvasive, minimally invasive, preinvasive, and in situ. Do we default to the microinvasive/minimally invasive code?
20160009

MP/H Rules/Histology--Appendix: What is the histology for an appendix resection diagnosis of "Malignant neoplasm of the appendix with the following features: Histologic type: Adenocarcinoma ex goblet cell carcinoid with mucin production (adenocarcinoma arising from goblet cell carcinoid)"? Is this histology best coded to a mixed adenocarcinoma/carcinoid tumor (8244/3)?

20180108

Solid Tumor Rules (2018)/Histology--Lung: What is the correct histology of a lung mass with a CT-directed fine needle aspirate "positive for malignancy, favor squamous cell carcinoma. See Discussion.