cerebellar mutism syndrome
Pronunciation: ser-eh-BELL-ar MYOO-tizm
Post-operative complication following posterior fossa surgery characterized by speech loss and behavioral changes.
Full Definition
Cerebellar mutism syndrome (CMS) is a well-recognized complication following surgical resection of posterior fossa tumors, particularly in pediatric patients. The syndrome typically develops 1-2 days after surgery and is characterized by mutism (inability to speak), emotional lability, hypotonia, and ataxia. While mutism usually resolves over weeks to months, some patients may have persistent dysarthria or other neurological deficits. The exact mechanism remains unclear but likely involves damage to cerebellar-cortical pathways. Editorial staff should note this specific terminology is preferred over older terms like 'posterior fossa syndrome' and represents a distinct clinical entity requiring specific management approaches.
Usage
Usage note: Preferred term over 'posterior fossa syndrome.' Can be abbreviated as CMS after first use.
In Context
- "The patient developed cerebellar mutism syndrome on post-operative day two following medulloepithelioma resection." — Complication documentation
- "Speech therapy was initiated early due to concerns about cerebellar mutism syndrome development." — Treatment plan