Middle mediastinal paraganglioma with blood supply by branch of left coronary artery: one case report

Paragangliomas are neuroendocrine tumors arising from extra-adrenal chromaffin cells of the autonomic nervous system and mediastinal paragangliomas are thought to deriving from para-aortic and para-vertebral ganglion chain. We present a 40-year-old woman with a middle mediastinal mass that was fed by branch of left coronary artery, and was finally diagnosed as primary mediastinal non-functional paraganglioma. The thoracic paraganglioma is extremely rare and it was unreliable to predict biologic behavior from the perspective of morphology. Excluding metastatic lesion and complete surgical resection are important to prognosis.