1. Syphilitic aseptic meningitis  (Trust Mark: Doctor-Reviewed)
Syphilitic aseptic meningitis is a complication of untreated syphilis that involves inflammation of the tissues covering the brain and spinal cord. The condition is marked by changes in mental status and problems with nerve function.• Reviewer: Linda Vorvick, MD, Seattle Site Coordinator, Maternal & Child Health Lecturer, Pathophysiology, MEDEX Northwest Division of Physician Assistant Studies, University of Washington School of Medicine; Susan Storck, MD, FACOG, Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine; Chief, Eastside Department of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Redmond, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

2. Stroke  (Trust Mark: Doctor-Reviewed)
A stroke is an interruption of the blood supply to any part of the brain. A stroke is sometimes called a "brain attack." See also: Arteriovenous malformation (AVM; Hemorrhagic stroke; Stroke secondary to carotid dissection (bleeding from the carot...• Reviewer: Daniel B. Hoch, PhD, MD, Assistant Professor of Neurology, Harvard Medical School, Department of Neurology, Massachusetts General Hospital. Also reviewed by by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.