SEER Inquiry System - Search

Reportability/Histology--Vulva: Is Extramammary Paget neoplasm (intraepithelial glandular neoplasm) reportable? See Discussion.

Primary site/Histology--Head & Neck: How are these fields coded when the final diagnosis for a skull based mass is "neuroendocrine carcinoma" and the IHC studies are incompatible with a brain/spinal cord primary (ependymoma)? See Discussion.

Surgery of Primary Site/Surgery Codes, NOS--Pancreas: What exactly is an extended pancreatoduodenectomy? Must the entire pancreas be resected in order to use code 70? What minimal requirements must be met to use code 70? How should a Whipple with cholecystectomy, partial omentectomy, common hepatic excision, portal vein resection, and lymphadenectomy be coded?

MP/H Rules/Multiple primaries/Histology: What histology and how many primaries are coded for a mixed germ cell tumor with a somatic type malignancy (rhabdomysarcoma) if the patient was diagnosed with seminoma of the testis in 2009 followed by a 2015 metastatic germ cell tumor in a retroperitoneal lymph node, stated to be a recurrence of the testicular cancer? See Discussion.

MP/H Rules/Histology/Multiple primaries--GE junction: How is histology coded for a goblet cell carcinoma in the GE junction? See discussion.

Reportability/MP/H Rules/Histology: Is this kidney tumor diagnosis reportable? If so, what is the correct histology? See discussion.

Solid Tumor Rules (2018, 2021)/Histology--Melanoma: How is histology coded for an invasive melanoma with multiple subtype/variants? See Discussion.

Solid Tumor Rules (2018)/Histology--Corpus Uteri: How is histology coded for cases of carcinosarcoma/malignant mixed Mullerian (MMMT) tumor diagnosed 2021 and later? See Discussion.

Histology/Behavior--GI Tract:  What is the difference between high grade dysplasia and severe dysplasia for tumors in the cervix and gastrointestinal (GI) tract? Are these terms synonymous with in situ/behavior code /2?  See Discussion.