Successful treatment of hemorrhagic brainstem cavernous malformation with hematoma evacuation and postoperative propranolol

In this case, we describe an evident hemorrhagic brainstem cavernous malformation successfully treated with a planned sequence of surgical evacuation of the hematoma followed by postoperative propranolol therapy. In contrast to common practice, the cavernoma itself was not resected. A nearly 3-year-old male presented with altered mental status, gait disturbance, and facial palsy. CT and MRI demonstrated a large acute pontine hematoma. A large nearby vein suggested cavernous malformation. He was initially treated conservatively but a repeat CT scan demonstrated further expansion of hematoma and he was taken emergently to the OR. Due to the sensitive location of the hematoma in the pons, we planned to evacuate the hematoma without resecting any of the presumed cavernoma. Instead, we planned to treat the cavernoma with propranolol. Postoperatively, the patient's condition improved and was still improving at hospital discharge 2 weeks later. Six-month follow-up MRI showed no cavernoma with only hemosiderin at the site of the evacuated hematoma. This is the first reported case of a hemorrhagic brainstem cavernous malformation treated with a planned sequence of hematoma evacuation followed by propranolol without an attempt to resect the cavernoma.