Familial cavernous angioma of the brain stem dominantly inherited in Hispanics.

A 23-year-old Hispanic woman whose mother had died of a brain hemorrhage developed signs and symptoms of a brain stem lesion. These gradually progressed over the next 30 years. Her computed tomographic and magnetic resonance imaging scans show features typical of a cavernous angioma in the brain stem. Her daughter had a transient right hemiparesis at age 25, and at age 28 noted periorbital pain with twitching of the forehead and jaw. The daughter's computed tomographic and magnetic resonance imaging scans likewise suggest cavernous angioma of the brain stem. There has been only one other report of familial cavernous angioma of the brain stem, and that also involved a Hispanic family. Hispanics have a known predisposition to familial cavernous angioma, and this diagnosis should be considered when more than one person in a family develops brain stem symptoms.