Benign Atrial Neoplasm

**Semantic type:** Neoplastic Process

**Definition:** A neoplasm that arises from the right or left atrium and is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential.

**Synonyms:** - Benign Atrial Tumor - Benign Neoplasm of Atrium of Heart - Benign Neoplasm of Cardiac Atrium - Benign Neoplasm of the Atrium of the Heart - Benign Neoplasm of the Cardiac Atrium - Benign Tumor of Atrium of Heart - Benign Tumor of Cardiac Atrium - Benign Tumor of the Atrium of the Heart - Benign Tumor of the Cardiac Atrium