Fine-needle aspiration of a primary right atrial myxoma.

Cardiac myxomas are rare neoplasms usually diagnosed by echocardiography. Preoperative tissue diagnosis is usually not obtained because of the location of these neoplasms. Their cytologic appearance has only been reported from touch imprints of operative specimens or aspirates of metastatic deposits. We report the cytologic appearance of a right atrial myxoma characterized by bland spindle cells and fragments of myxoid debris.