Reportability--Kidney: Is the donor or the recipient the reportable patient when a cyst removed from a pre-transplanted kidney is determined to be cancerous? See Discussion.
First course treatment: Is subsequent treatment with R-ICE first course or second course therapy if the patient underwent ABVD x2 cycles and subsequent imaging showed no response to treatment and evidence of progression [new adenopathy] for a lymphoma case? See Discussion.
Primary site/MP/H Rules/Histology: What is the appropriate site and histology code for a tumor described as a "Large mass In suprasellar cistern encroaching into sphenoid & ethmoid sinuses", with the pathology described as "INI-1 deficient sinonasal undifferentiated carcinoma"? Of note, this patient has a history of a pituitary adenoma, resected overseas a few months prior to this diagnosis.
Primary Site/Histology--Urinary: Is a urethral lesion showing intraductal carcinoma of the prostate reportable? What is the primary site and histology code? See discussion.
Primary Site--Peritoneum: During a second look staging lap following a diagnosis of serous carcinoma of the left ovary, did the physician correctly indicate a new peritoneum, NOS primary for disease described as an endometrioid adenocarcinoma in a "paracaval cyst" that appears to have arisen in endometriosis?
Surgery of Primary Site/Other Cancer-Directed Therapy--Head & Neck (Nasal cavity): Should a small fragment of bone removed during a maxillectomy following a turbinectomy for a nasal turbinate primary be "partial or total removal with other organ" for coding this field? See discussion.
Solid Tumor Rules/Multiple Primaries--Lung: How many primaries and what M Rule applies to a 2022 diagnosis of right upper lobe non-small cell lung carcinoma (NSCLC) when the patient has a history acinar adenocarcinoma in the right lower lobe of the lung in 2020, followed by squamous cell carcinoma in the right middle lobe of the lung in 2021? See Discussion.
Solid Tumor Rules (2018)/Multiple Primaries--Breast: The December 2020 revision to 2018 Breast Solid Tumor Rules, Rule M10, using behavior rather than timing to determine the number of primaries, has caused synchronous separate/non-contiguous tumors reported as invasive carcinoma, NST (8500/3) and lobular carcinoma in situ (8520/2) (or vice versa) to be reported as separate primaries per Rule M14. Should an invasive carcinoma NST and a synchronous, separate lobular carcinoma in situ be separate primaries per M14? See Discussion.
Solid Tumor Rules (2018)/Histology--Colon: Should the mixed adenoneuroendocrine carcinoma (MANEC) row in Table 1 include the still often used (yet older) terms of adenocarcinoma and carcinoid, adenocarcinoid, etc. for clarity? See Discussion.
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