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This diagnosis is not listed in the ICD-O-3 though it is listed as code 9509/1 for this specific tumor in the 2007 WHO classification of Tumours of Central Nervous System. (See link:  http://link.springer.com/article/10.1007/s00401-007-0243-4/fulltext.html.)

SINQ 20081076 states carcinoid tumorlets of the lung are not reportable and are defined as being less than 5 mm in diameter and benign. Per the WHO Classification of Digestive Tumours, microcarcinoid tumors are precursor lesions/nodules measuring greater than 0.5 mm, but less than 5 mm (0.5 cm). Is the term microcarcinoid tumor equivalent to carcinoid tumorlet, and therefore not reportable? Or is a microcarcinoid tumor a reportable type of neuroendocrine tumor (NET)?

Unlike most other sites, there is no specific code for a radical surgical procedure of a skin primary. In this case, the patient was diagnosed with a sebaceous cell carcinoma of the lower eyelid skin by punch biopsy. The tumor was large and an orbital exenteration was planned. Despite the extensive surgery performed, skin margins were less than 1 cm. Is an orbital exenteration a "major amputation" (code 60) in this case? Given that the margins were not greater than 1 cm, codes 45 - 47 (which includes a minor (local) amputation) don't seem to apply. However, if this procedure cannot be classified as "minor amputation" then doesn't it seem overkill to refer to the procedure as a "major amputation"?

An alternative would be to code Surgery of Primary Site to 32 for the skin resection (punch biopsy followed by a gross excision of the lesion, margins less than 1 cm) and code Surgical Procedure of Other Site to 2 (non-primary surgical procedure to other regional sites) to record the removal of the globe and orbit as part of the orbital exenteration. Which is correct?

8/1/15 CT Exam showed enlarged prostate and left seminal vesicle with multiple enlarged pelvic LNs. Findings: suspicious for prostate cancer with invasion of seminal vesicle. Bone scan findings: positive bone mets in multiple sites. PSA 169.0 (elevated). Patient was started on casodex 8/12/15. A prostate biopsy was performed on 9/16/15 to confirm diagnosis, adenocarcinoma Gleason 4+5. Patient's treatment continued with radiation to bone.

Rectal polyp excised in June, 2012, found to have adenocarcinoma in situ in a tubulovillous adenoma. Additional colorectal biopsies in November; all were negative. Another rectal polyp removed in December 2012 showing a tubulovillous adenoma with focal carcinoma in situ. Then, in February, 2013 another rectal polyp removed. This was diagnosed as mod. diff. adenocarcinoma with mucinous features, infiltrating into submucosa, seen in a background of tubulovillous adenoma. Surgical margins free (mucin %=40%). Finally, in May, 2013, a low anterior resection with no residual adenocarcinoma.

This appears to be adenocarcinoma in multiple adenomatous polyps (8221/3), although the final path from May 2013 described one benign polyp and said, 'no other masses, suspicious lesions or polyps are identified.' Going through the MP/H rules, both M13 and M14 result in this being a single primary, and come before the rule about an invasive tumor following an in situ tumor more than 60 days later is a new primary. The original abstract was coded C209 and 8263/2. If this is a single primary, should it be changed to 8221 with a behavior code of 3? Is this scenario another example of when to change the original diagnosis based on subsequent information?

Patient had a core needle biopsy of the right acetabulum. Final diagnosis on the path report is: Atypical cartilaginous tumor (formerly chondrosarcoma, grade 1).

Is this cell type reportable? If so, is it reportable only because the pathologist recorded clarifying text in parentheses? If the text in the parentheses was not available, is the histology "atypical cartilaginous tumor" reportable?

We are seeing more use of LI-RAD categories on scans. The final impression on the scan will be LI-RADS Category 5 or LI-RADS Category 4, with no specific statement of HCC. The scans include a blanket statement with the definitions of the LI-RADS categories as below.

LIRADS (v2014) categories

M - Possible non-HCC malignancy

1 - Definitely Benign

2 - Probably Benign

3 - Intermediate Probability for HCC

4 - Probably HCC

5 - Definitely HCC (concordant with OPTN 5)

A previous SINQ, 20010094, indicates that we cannot use BI-RADS categories for breast cancer diagnosis, but those BI-RADS definitions are slightly different. Most often there will be a subsequent clinical statement of HCC, so the question is also in reference to Diagnosis Date. Can we use the date of the scan's impression, which states LI-RADS category 4 or 5, as the Diagnosis Date?