Lung Inflammatory Myofibroblastic Tumor

**Semantic type:** Neoplastic Process

**Definition:** An intermediate fibroblastic neoplasm that arises from the lung and is characterized by the presence of spindle-shaped fibroblasts and myofibroblasts, and a chronic inflammatory infiltrate composed of eosinophils, lymphocytes, and plasma cells.

**Synonyms:** - Lymphocytic pseudotumor of lung - Myofibroblastic Tumor, Peribronchial - Myofibroblastic tumor, peribronchial