Source:http://linkedlifedata.com/resource/umls/id/C0863188
NCI: Stage III is divided into stage IIIA and stage IIIB depending on where the cancer has spread. In stage IIIA, cancer has spread to (1) the muscularis (middle) layer of the stomach wall and is found in 7 to 15 lymph nodes near the tumor, or (2) the serosal (outermost) layer of the stomach wall and is found in 1 to 6 lymph nodes near the tumor, or (3) to organs next to the stomach but not to lymph nodes or other parts of the body. In stage IIIB, cancer has spread to the serosal (outermost) layer of the stomach wall and is found in 7 to 15 lymph nodes near the tumor.,NCI: Stage III includes: IIIA (T2a/b, N2, M0); (T3, N1, M0); (T4, N0, M0). IIIB: (T3, N2, M0). N0: No regional lymph node metastasis. N1: Metastasis in 1 to 6 regional lymph nodes. N2: Metastasis in 7 to 15 regional lymph nodes. T2a: Tumor invades muscularis propria. T2b: Tumor invades subserosa. T3: Tumor penetrates serosa (visceral peritoneum) without invasion of adjacent structures. T4: Tumor invades adjacent structures. M0: No distant metast