Clinical T
This input is used for staging
Notes
**Note 1:** Assign 88 for in situ cases (behavior code /2). TNM does not include an in situ category for GIST peritoneum tumors. **Note 2:** Tumor size must be known to assign T. You may use a physician’s statement of the T category if this is the only information in the medical record. * If no size or category is specified, assign TX **Note 3:** Assign the appropriate T category based on the tumor size for the following descriptions Tumor confined to site of origin Adjacent connective tissue Adjacent organs/structures including bone/cartilage Confined to peritoneum Confined to retroperitoneum Localized, NOS **For retroperitoneum (C480)** Adrenal(s) (suprarenal gland(s)) Aorta Colon Kidney(s) Pancreas Inferior vena cava (IVC) Vertebra **For peritoneum (C481, C482)** Colon Esophagus Gallbladder Liver Small intestine Spleen StomachNAACCR Item
NAACCR #940| Clinical T | Clinical T Display | Description | Registrar Notes |
|---|---|---|---|
| cX | cTX | Primary tumor cannot be assessed | Clinical classification criteria met, evaluation done: Physician unable to assess T Extension cannot be determined Tumor size (TS) unknown for T categories where TS needed to determine T Physician assigns cTX, no other information available to determine T |
| c0 | cT0 | No evidence of primary tumor | |
| c1 | cT1 | Tumor 2 cm or less in greatest dimension | Stated as T1 |
| c2 | cT2 | Tumor more than 2 cm but not more than 5 cm in greatest dimension | Stated as T2 |
| c3 | cT3 | Tumor more than 5 cm but not more than 10 cm in greatest dimension | Stated as T3 |
| c4 | cT4 | Tumor more than 10 cm in greatest dimension | Stated as T4 |
| 88 | 88 | Not applicable | In situ case but no pTis is defined by TNM Death certificate only (DCO) case |
| <BLANK> | BLANK | See Registrar Notes | Clinical classification criteria not met Clinical classification criteria met, evaluation done: No information about diagnostic workup Results not documented in record Clinical evaluation of primary tumor not done or unknown if done Tumor first detected on surgical resection (no clinical workup) Evidence of metastatic disease [(cM1) or (pM1)], no other workup Only Clinical Stage Group documented (no T, N, or M information available) |