Stage II Thymoma AJCC v9

**Semantic type:** Neoplastic Process

**Definition:** Stage II includes: T2, N0, M0. T2: Tumor with direct invasion of the pericardium (either partial or full thickness), or the lung, or the phrenic nerve. N0: No involvement of regional lymph node(s). M0: No distant metastasis. (AJCC 9th ed.)