hemiatrophy

Full Definition

Hemiatrophy describes asymmetric atrophy affecting one cerebral hemisphere or one side of the body. Cerebral hemiatrophy can be congenital (as in Sturge-Weber syndrome) or acquired (following stroke, infection, or trauma), often resulting in contralateral neurological deficits. Facial hemiatrophy (Parry-Romberg syndrome) affects soft tissues and sometimes underlying bone. The condition typically progresses slowly and may stabilize after a period of active atrophy.

Usage

Usage note: Specify location (cerebral, facial, etc.) and distinguish from functional deficits like hemiplegia.

In Context

• "MRI revealed marked left cerebral hemiatrophy following the neonatal stroke." — Pediatric neurology report
• "Progressive facial hemiatrophy was evident on the patient's clinical photographs." — Dermatology consultation