Spinal Epidural Angiolipoma: a Case Report on Sudden Hemorrhagic Onset and Review of the Literature

Spinal epidural angiolipoma is an uncommon benign tumor composed of vascular and fat elements. Hemorrhagic transformation of angiolipoma is very rare, and only a few cases have been reported. Herein, we report a very rare case of the surgical removal of an angiolipoma that had undergone hemorrhagic transformation. On preoperative radiological studies, it was difficult to differentiate between a simple hematoma and a mass. Dynamic contrast-enhanced magnetic resonance imaging confirmed the presence of a hypervascular mass and total en bloc removal was planned. The patient underwent T3-5 laminectomy and tumor removal surgery, and his symptoms gradually improved. Keywords: Angiolipoma; Epidural neoplasms; Spinal cord neoplasms