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Ontology Browser

Parent Terms Term With Siblings Child Terms
Abnormal basal ganglia MRI signal intensity +   
Abnormal corpus striatum morphology +   
Abnormal globus pallidus morphology +   
Abnormal substantia nigra morphology +   
Abnormality of central motor conduction +   
Abnormality of coordination +   
Abnormality of extrapyramidal motor function +   
Alien limb phenomenon  
Apraxia +   
Athetosis +   
Basal ganglia calcification  
Basal ganglia cysts  
Basal ganglia edema 
Basal ganglia gliosis  
Basal ganglia necrosis  
Bilateral basal ganglia lesions  
Cavitation of the basal ganglia  
Cerebral palsy +   
Chorea +   
Chvostek sign  
Clonus +   
Dysgenesis of the basal ganglia  
Fasciculations +   
Hemiballismus is a rare movement disorder that is caused primarily by damage to various areas in the basal ganglia. Hemiballismus is usually characterized by involuntary flinging motions of the extremities. The movements are often violent and have wide amplitudes of motion. They are continuous and random and can involve proximal and/or distal muscles on one side of the body, while some cases even include the facial muscles. The more a patient is active, the more the movements increase. With relaxation comes a decrease in movements.
Involuntary movements +   
Large basal ganglia  
Myoclonus +   
Neuronal loss in basal ganglia  
Paralysis +   
Paroxysmal dyskinesia  
Self-mutilation of tongue and lips due to involuntary movements  
Small basal ganglia  
Status cribrosum  
Symmetric lesions of the basal ganglia  
Torticollis +   
Tremor +   
Upper motor neuron dysfunction +   

Related Synonyms: Ballismus
Xrefs: MESH:D020820 ;   SNOMEDCT_US:66637005 ;   UMLS:C0221169
Definition Sources:

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