Ruptured anterior cerebral artery aneurysm with pericallosal hematoma
Presentation
Severe headache started four days ago and progressive inability to ambulate and urine incontinence in the following days. Newly diagnosed systemic hypertension.
Patient Data
Hematoma surrounding the corpus callosum, following the contour of the corpus callosum and frontal parafalcine subarachnoid spaces with an associated intraventricular extension of the hematoma and a small (5 mm) saccular (berry) aneurysm in the A1 segment of the left anterior cerebral artery. Secondary acute hydrocephalus and cytotoxic edema involving the corpus callosum and the frontal cortex (L>R).
Ring artifacts in the pre and post-contrast images.
Case Discussion
Subarachnoid hemorrhage surrounding the corpus callosum also known as pericallosal hematoma are not commonly encountered in head imaging and often associated with pericallosal aneurysmal rupture than with anterior cerebral artery aneurysmal rupture. It can be confused with intraparenchymal corpus callosal hemorrhage. The presence of acute hydrocephalus with neurological deterioration in this case may require ventricular shunt, besides treatment of the aneurysm.
Unable to process the form. Check for errors and try again.