Acute Paraplegia Revealing a Hemorrhagic Cauda Equina Paragangliomas.

Cauda equina paragangliomas are rare neuroendocrine benign and slow-growing tumors. Acute paraplegia, occurring because of sudden intratumoral hemorrhage, represents an extremely rare clinical picture of this disease. We report the case of a 64-year-old male presenting with a 5-day acute lower back pain, sciatica, and leg weakness. Spinal imaging showed an intradural mass of the cauda equina region and an emergent surgical treatment was achieved. The lesion was removed "en bloc," and subarachnoid blood was noticed during surgery. The postoperative course was uneventful, with complete regression of pain and progressive motor recovery. The histological study revealed typical microscopic and immunohistochemical features of paragangliomas.