" /> Stage I Lung Cancer AJCC v8 - CISMeF





Preferred Label : Stage I Lung Cancer AJCC v8;

NCIt related terms : Stage I; Stage I Lung Cancer;

NCIt definition : Stage I includes: IA1: (T1mi, N0, M0); (T1a, N0, M0); IA2: (T1b, N0, M0); IA3: (T1c, N0, M0); IB: (T2a, N0, M0). T1mi: Minimally invasive adenocarcinoma: adenocarcinoma (3 cm or less in greatest dimension) with a predominantly lepidic pattern and 5 mm or less invasion in greatest dimension. T1a: Tumor measuring 1 cm or less in greatest dimension. A superficial, spreading tumor of any size whose invasive component is limited to the bronchial wall and may extend proximal to the main bronchus also is classified as T1a, but these tumors are uncommon. T1b: Tumor measuring more than 1 cm but 2 cm or less in greatest dimension. T1c: Tumor measuring more than 2 cm but 3 cm or less in greatest dimension. T2a: Tumor measuring more than 3 cm but 4 cm or less in greatest dimension. N0: No regional lymph node metastases. M0: No distant metastasis. (AJCC 8th ed.);

Neoplastic status : Malignant;

NCI Metathesaurus CUI : CL523773;

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31/07/2025


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