Teaching NeuroImage: Intracranial Cerebral Aneurysms Secondary to Epithelioid Hemangioendothelioma | Neurology
A 46-year-old man with a history of biopsy-confirmed pulmonary epithelioid hemangioendothelioma (Figure 1A) was admitted to the hospital for a thunderclap headache. A conventional head CT showed subarachnoid hemorrhage in the right lateral fissure (Figure 1B), and digital subtraction angiography showed multiple cerebral aneurysms (Figure 1C). Postcontrast MRI showed enhancing lesions of the aneurysm wall and lumen (Figure 1D). Unfortunately, the middle cerebral artery aneurysm ruptured first, followed by