SEER Inquiry System - Search

Summary Stage 2018/EOD 2018--Thymus: How should SEER Summary Stage 2018 be coded for a 2018 thymus primary which has mediastinal fat invasion without mediastinal pleural involvement? See Discussion.

Summary Stage 2018/EOD 2018/EOD Primary Tumor--Colon: Does the 2018 SEER Summary Staging Manual, Digestive System Sites, Distinguishing In Situ and Localized Tumors for the Digestive System, #1. b., Exception, include in situ plus intramucosal carcinoma (involvement of the lamina propria and may involve but not penetrate through the muscularis mucosa) (penetration through the muscularis mucosa is behavior code 3.)? This seems to be in conflict with Extent of Disease (EOD) 2018. See Discussion.

Summary Stage 2018/Extension--Colon: Are colon primaries coded as local or regional (direct extension) on Summary Stage based on invasion into the pericolorectal tissues? For example, is a case with an ascending colon tumor that extends into the pericolorectal tissues, pT3, local or regional by direct extension?

Summary Stage 2018/Extension--Colon: What is the Summary Stage for adenocarcinoma of cecum where the tumor extends into the proximal portion of attached vermiform appendix? See Discussion.

Summary Stage 2018/Extension--Prostate: Can imaging be used to code SEER Summary Stage 2018? MRI shows tumor involved the seminal vesicles and the patient did not have surgery. AJCC does not use imaging to clinically TNM stage a prostate case.

Summary Stage Manual 2018 "Lymphoma: SEER Summary Stage 2000 states: For lymphomas, any mention of lymph nodes is indicative of involvement and is used to determine the number and location of lymph node chains involved (see lymphoma scheme). This statement is not in SEER Summary Stage 2018. Does that mean we follow rules #4-7, pages 14-15, under Code 3: Regional Lymph Nodes only, for every site, including lymphoma?

Surgery Fields--Multiple sites: What code is used to represent these fields for the following surgical procedures?

1. Tongue, NOS - Hemiglossectomy with lymph node dissection

2. Choroid - Eye enucleation

3. Vulva, NOS - Vulvectomy with bilateral lymph node dissection

4. Gallbladder - Cholecystectomy

5. Lung - Laminectomy with partial removal of tumor

Surgery of Primary Site--Bladder: Is any mention of cautery in the gross description of pathology for a TURBT specimen sufficient to code 22 (excisional biopsy with electrocautery), or does there need to be a statement in the operative report that electrocautery was performed? See discussion.

Surgery of Primary Site--Brain and CNS: What procedure code would be used for NeuroBlate Laser Interstitial Thermal Therapy? This procedure was used for a Glioblastoma of the brain.

Surgery of Primary Site--Breast: How is this field coded when a patient has a reduction mammoplasty (for macromastia) and within the pathology specimen there is an incidental finding of carcinoma?