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Pathology report reads left ovary: noninvasive low grade (micropapillary) serous carcinoma (MPSC), fragmented; right ovarian excrescence and posterior cul-de-sac: noninvasive implants identified; right ovary: noninvasive low grade (micropapillary) serous carcinoma (MPSC), scattered autoimplants (noninvasive); tumor is present on ovarian surface, noninvasive autoimplants

Operative report indicates a wire localized lumpectomy was performed. The pathology report includes a final diagnosis for two specimens as follows:

A) LEFT BREAST, EXCISION: INFILTRATING DUCTAL CARCINOMA

B) LEFT BREAST, NEW DEEP MARGIN, EXCISION: BENIGN BREAST TISSUES AND BENIGN FIBROFATTY SOFT TISSUES; NO EVIDENCE OF NEOPLASIA.

The definition for Breast surgery code 23 is "Reexcision of the biopsy site for gross or microscopic residual disease". There is no indication whether the re-excision has to be a separate procedure or can be during the same procedure as the excisional biopsy (lumpectomy). Some hospital registrars in our region believe code 22 is more appropriate.

Endocrine mucin-producing sweat gland carcinoma (EMPSCG) is a rare type of low-grade sweat gland carcinoma. Some journal articles indicate that most patients with EMPSCG have coexisting mucinous carcinomas, suggesting that EMPSCG is a precursor to invasive mucinous carcinoma of the skin. Sweat gland carcinoma has its own histology code per the ICD-O-3 (8400/3); should an endocrine mucin-producing sweat gland carcinoma also be coded as 8400/3? If so, would the correct histology for the skin case above be mucinous carcinoma (8480/3) per Rule H17? Conversely, if the terms "mucin-producing" are referring to mucin-producing carcinoma, and not referring to the sweat gland carcinoma, would the histology be coded 8481/3 (mucin-producing carcinoma)?

There is a 1988 case that hit the SEER edits for other reasons but not because of that site/histo combination (C000 and 8090/3); however, there is no text.

Per a Dataminer query, there are 42 cases in the state database with C000-C009 and 8090.  On review, a few did have a mention of the word "upper lip/mucosa" in the PE text or OP findings (not path because a lot of these are removed in the MD office and we don't see the path report). Other times, there is no mention but the abstractor used the C00 codes instead of C44 so the cases get through.

SINQ #20031110 addresses this in relation to C000, Lip, NOS but we want to know if this answer meant you would never report a basal carcinoma lip case period (even if there is a mention of mucosa or any mention of mucosa in the path report). Are there any exceptions?

It seems if you would never report a basal lip carcinoma, then SEER would block those cases from being reported/submitted and the wording would be stronger in the SEER manual.

Right now the reportability only addresses if someone codes C44 but if someone decides to use C00 codes then it is allowed. Under Primary Site, there is even a listing under 12 for "absence of any additional information" and lists "Colored / lipstick portion of upper lip" as code C000.

Examples

8/xx/13 TURBT with path specimen (27): Papillary Urothelial Carcinoma, HG    9/xx/13 Bladder fulgeration w/o path specimen (12)

5/xx/14 Segmental Mastectomy(24): Ductal carcinoma with <1mm marg    6/xx/14 Breast Re-excision (23): Residual ductal carcinoma 1.5mm, marg neg

Should it be coded to where the testis was physically at the time of diagnosis (C621), or should it be coded to C620 to reflect the increased risk for developing malignancy in an undescended testis?

This patient underwent a "partial decortication" per the operative report. While the operative report does not specifically note that this was performed with a partial pleurectomy, it appears the patient had a partial pleurectomy because the largest specimen removed was a "pleural peel" specimen, which included the parietal and visceral pleural surfaces with a small amount of underlying lung tissue. The operative report notes the patient had involvement of both the lung and chest wall. A total resection was not possible due to the extent of the tumor. However, this patient does appear to have undergone at least a partial resection of the pleura/tumor burden. The patient did not simply undergo a pleurodesis to free adhesions. Per the NCI's PDQ, pleurectomy and decortication are performed together. Because the operative report and pathology report only called this procedure a "partial decortication" without specifically mentioning a pleurectomy, would this be coded as a tumor excision (surgery code 20)? Or should we assume the procedure is best coded as a partial pleurectomy and decortication and use code 30 (simple/partial resection)?

Patient had an appendectomy revealing a low grade mucinous appendiceal neoplasm (LAMN) with diffuse peritoneal dissemination. Patient now with cytoreduction and hyperthermic intraperitoneal chemotherapy (HIPEC), which revealed metastatic disease in the abdomen, omentum, pelvic peritoneum, peri-cecal, and gallbladder.