EOD Primary Tumor

This input is used for staging

Default

999

NAACCR Item

NAACCR #772

Code	Description	SS2018 T
000	In situ, intraepithelial, noninvasive	IS
050	Benign or borderline tumor	B
100	Invasive tumor confined to gland of origin Localized, NOS	L
200	Adjacent connective/soft tissue Adjacent organ(s)/structure(s) for pituitary and craniopharyngeal duct - Cavernous sinus - Infundibulum - Pons - Sphenoid body and sinuses Adjacent organ(s)/structure(s) for pineal - Infratentorial and central brain	RE
700	Further contiguous extension	D
800	No evidence of primary tumor	U
999	Unknown; extension not stated Primary tumor cannot be assessed Not documented in medical record Death Certificate Only	U

(1) Fritz AG, Ries LAG (eds). **SEER Extent of Disease 1988: Codes and Coding Instructions (3rd Edition, 1998)**, National Cancer Institute, NIH Pub. No. 98-2313, Bethesda, MD, 1998 (2) Young JL Jr, Roffers SD, Ries LAG, Fritz AG, Hurlbut AA (eds.). **SEER Summary Staging Manual-2000: Codes and Coding Instructions**, National Cancer Institute, NIH Pub. No. 01-4969, Bethesda, MD, 2001. (3) Collaborative Stage Work Group of the American Joint Committee on Cancer. **Collaborative Stage Data Collection System User Documentation and Coding Instructions, version 02.05.** American Joint Committee on Cancer (Chicago, IL) (4) Laws, E.R., Curran, W.J., et al. **Brain and Spinal Cord**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017