Contralateral Extradural Hematoma Formation following Evacuation of Chronic Subdural Hematoma: A Case Report and Review of Literature

Here, we report a case of a 42-year-old man with right frontoparietal chronic subdural hematoma who presented with headache and weakness of left side of the body. He underwent burr hole craniostomy with a closed drainage system. A computed tomography scan conducted on postoperative day 1 showed an extradural hematoma over the contralateral parietal convexity. Craniotomy and hematoma evacuation was immediately performed. Patient improved postoperatively without any neurological deficit. He was discharged on 7th postoperative day. To our knowledge, this is a very rare occurrence. We will review the literature and discuss the factors related to this.