A case of schwannoma arising in brachial plexus with intrathoracic extension

Abstract

A case of benign Schwannoma arising in the brachial plexus with intrathoracic extension was presented. The patient was a 43-year-old man, who was pointed out an abnormal shadow in the right apical region on routine chest X-ray examination. MRI showed that the mass extended to the lowest trunk of the brachial plexus. He had no complaint. A benign mediastinal tumor was suspected, but we could not make a final diagnosis. Therefore, a diagnostic operation was performed. The tumor was round and composed of many cysts. Histopathological examination revealed a schwannoma (Antoni type A).