EOD Primary Tumor

This input is used for staging

Notes

**Note 1:** Impaired vocal cord mobility, also described as vocal cord paresis, may suggest invasion of intrinsic laryngeal muscle. Fixation of the vocal cord may be described as immobility of the arytenoids noted on endoscopy, vocal cord paralysis, or deviation of larynx to fixed side. **Note 2:** Code 100 for localized tumor only if no information is available to identify further extension. **Note 3:** Tumor limited to the larynx (code 200) includes tumor involving, but limited to, the supraglottis, glottis and subglottis.

Default

999

NAACCR Item

NAACCR #772
Code Description SS2018 T
000 In situ, intraepithelial, noninvasive IS
100 Tumor limited to the subglottis Invasive tumor with normal vocal cord mobility Localized, NOS L
200 Tumor involves adjacent regions(s) of larynx - Glottis - Supraglottis WITH normal or impaired mobility Limited to larynx, NOS L
400 Tumor limited to larynx with vocal cord fixation Invasion of - Inner cortex of the thyroid cartilage - Paraglottic space RE
500 Base of tongue Hypopharynx, NOS Postcricoid area Pre-epiglottic tissues Pyriform sinus (pyriform fossa) Vallecula RE
600 Cricoid cartilage Esophagus Extrinsic muscles of tongue - Genioglossus - Geniohyoid - Hyoglossus - Mylohyoid - Palatoglossus - Styloglossus Oropharynx Skin Soft tissues of neck Strap muscle(s) - Omohyoid - Sternohyoid - Sternothyroid - Thyrohyoid Thyroid cartilage (outer cortex, NOS) Thyroid gland Trachea D
700 Carotid artery (encased) Mediastinal structure(s) Prevertebral space Further contiguous extension D
999 Unknown; extension not stated Primary tumor cannot be assessed Not documented in patient 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) Gress, D.M., Edge, S.B., Gershenwald, J.E., et al. **Principles of Cancer Staging**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 3-30 (5) Lydiatt, W.M., Patel, S.G., Shah, J.P., et al. **Staging Head and Neck Cancers**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 55-65 (6) Patel, S.G., Lydiatt, W.M., Shah, J.P., et al. **Larynx**. In: Amin, M.B., Edge, S.B., Greene, F.L., et al. (Eds.) AJCC Cancer Staging Manual. 8th Ed. New York: Springer; 2017: 149-161