EOD Primary Tumor
This input is used for staging
Notes
**Note 1:** **Intrahepatic vascular invasion** * Intrahepatic vascular invasion is used synonymously with vascular invasion for tumors in codes 100-500 and includes gross and microscopic involvement (microvascular invasion) of vessels. **Note 2:** **Multiple tumors** * Multiple tumors include satellitosis, multifocal tumors, and intrahepatic metastasis. **Note 3:** **Segments of the Liver** * The liver is divided into several lobes as defined below. If multiple lobes (such as the Caudate lobe and the Left Lobe) are involved, see codes 300-500. * If multiple segments (such as 5 and 6 in the right lobe) in the same lobe are involved, this would be multiple tumors within one lobe (code 200) * Caudate lobe: Segment 1 * Quadrate lobe: Segment 4b * Left lobe: Segments 2, 3, 4a * Right lobe: Segments 5, 6, 7, 8Default
999NAACCR Item
NAACCR #772| Code | Description | SS2018 T |
|---|---|---|
| 000 | Intraepithelial, noninvasive | IS |
| 100 | Any size tumor - Single lesion (one lobe) + WITHOUT or UNKNOWN vascular invasion Confined to liver, NOS Localized, NOS | L |
| 150 | Code 100 WITH vascular invasion | L |
| 200 | Multiple (satellite) nodules/tumors confined to one lobe - WITH or WITHOUT vascular invasion | L |
| 300 | Any size tumor - More than one lobe involved by contiguous growth (single lesion) + WITHOUT or UNKNOWN vascular invasion | RE |
| 400 | Code 300 WITH vascular invasion | RE |
| 500 | Multiple (satellite) nodules/tumors in more than one lobe of liver or on surface of parenchyma - WITH or WITHOUT vascular invasion | RE |
| 600 | Diaphragm Extrahepatic bile duct(s) Extrahepatic blood vessel(s) - Hepatic artery - Portal vein - Vena cava Gallbladder Ligament(s) - Coronary - Falciform - Hepatoduodenal - Hepatogastric - Round (of liver) - Triangular Omentum (lesser and NOS) (See code 700 for greater omentum) Peritoneum, NOS - Parietal - Visceral Major vascular invasion, NOS | RE |
| 700 | Greater omentum (see code 600 for lesser omentum and omentum, NOS) Pancreas Pleura Stomach 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 |