Dumbbell-shaped Posterior Mediastinal Cavernous Hemangioma  

Abstract Mediastinal cavernous hemangioma is an extremely rare benign tumor caused by a congenital vascular malformation. We reported a case of posterior mediastinal cavernous hemangioma from clinical, imaging, and pathological aspects. A 68-year-old male patient without clinical symptoms exhibited an accidental finding of left posterior mediastinal mass on chest radiography during a routine physical examination. It was dumbbell-shaped on the left side of the seventh thoracic vertebra and extended into the intervertebral foramen, measuring 31 × 31 × 24 mm with no bone destruction. After an initial misdiagnosis of the neurogenic tumor, surgical resection and histological confirmation of the cavernous hemangioma was performed. For the reason that pathological evaluation is banned before the surgical resection of the Cavernous Hemangioma, thus it is necessary to increase clinician awareness of the diagnosis and maximize patient benefit.