Primary site--Breast: Patient was diagnosed with invasive ductal carcinoma of the left breast. Site of mass is 2:00 to 3:00. What is the correct site code, C504 upper outer quadrant (UOQ) or C50.8 (overlapping)?
Reportability--Brain and CNS: Are lipomas of the spinal column reportable as a benign tumor of the central nervous system (CNS)? This is seen occassionally at our pediatric facility.
Reportability--Liver: Is a diagnosis of Liver Imaging Reporting and Data System (LI-RADS)-Treatment Response (LR-TR) viable nodule seen on imaging and treated with Y-90 radiotherapy reportable? See Discussion.
Reportability/Histology--Endometrium: Is endometrial hyperplasia with atypia equivalent to atypical hyperplasia of the endometrium (8380/2) and thus reportable?
Update to current manual/Lymphovacular invasion--Thyroid: Are psammoma bodies only recorded as vascular invasion in papillary thyroid cancer cases? See Discussion.
Update to current manual/Lymphovascular invasion: Are lymphvascular invasion and lymphvascular space invasion on a pathology report the same thing or do they describe different things?
Reportability/Date of diagnosis--Thyroid: Is category Thyroid imaging reporting and data system (TI-RADS) 4 (4a/4b) or TI-RADS 5 on imaging diagnostic of thyroid cancer, and if so, can we use the date of the impression on the scan that states either of these categories as the diagnosis date?
Update to current manual/First course treatment--Neoadjuvant treatment: How are the 2021 neoadjuvant therapy fields coded when neoadjuvant therapy and surgery were part of first course plans but treatment was never completed. See Discussion.
Multiple primaries/Heme & Lymphoid Neoplasms--Lymphoma: Is a 2021 right tongue base biopsy showing diffuse large B-cell lymphoma (DLBCL) (9680/3) a new primary following a prior history of hairy cell leukemia-variant (HCL-v) (9591/3) in 2011? See discussion.