Unilateral Primary Angiitis of the Central Nervous System: A Rare and Under-Recognized Entity.
Doctors have identified a rare form of brain inflammation called unilateral primary angiitis of the central nervous system (U-PACNS) that affects only one side of the brain instead of both sides. This condition is often missed or confused with other diseases like brain tumors or multiple sclerosis because it looks similar on imaging tests. The article explains how doctors can better recognize and diagnose this condition by understanding its unique features.