Biomaterial Database

Hemifacial spasm caused by vertebral artery dolichoectasia. 2002

Ersalan A Rahman, and Jonathan D Trobe, and Stephen S Gebarski

Department of Ophthalmology, Kellogg Eye Center, University of Michigan, Ann Arbor, Michigan 48109, USA.

OBJECTIVE To display the characteristic magnetic resonance imaging (MRI) abnormalities associated with hemifacial spasm caused by compression of the seventh cranial nerve by a dolichoectatic vertebral artery. METHODS Interventional case report. METHODS Correlation of imaging and clinical findings. RESULTS In a 36-year-old man with mild left hemifacial spasm, MRI showed an enlarged (dolichoectatic) vertebral artery that compressed the seventh cranial nerve at its exit from the caudal pons. Manifestations of hemifacial spasm were relieved with periocular botulinum toxin injections. CONCLUSIONS In hemifacial spasm, MRI may show compression of the ipsilateral seventh cranial nerve or other structural abnormalities. Relief of hemifacial spasm may occur with botulinum toxin injection or with neurosurgical intervention designed to relieve the compression.

UI	MeSH Term	Description	Entries
D007267	Injections	Introduction of substances into the body using a needle and syringe.	Injectables,Injectable,Injection
D008279	Magnetic Resonance Imaging	Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.	Chemical Shift Imaging,MR Tomography,MRI Scans,MRI, Functional,Magnetic Resonance Image,Magnetic Resonance Imaging, Functional,Magnetization Transfer Contrast Imaging,NMR Imaging,NMR Tomography,Tomography, NMR,Tomography, Proton Spin,fMRI,Functional Magnetic Resonance Imaging,Imaging, Chemical Shift,Proton Spin Tomography,Spin Echo Imaging,Steady-State Free Precession MRI,Tomography, MR,Zeugmatography,Chemical Shift Imagings,Echo Imaging, Spin,Echo Imagings, Spin,Functional MRI,Functional MRIs,Image, Magnetic Resonance,Imaging, Magnetic Resonance,Imaging, NMR,Imaging, Spin Echo,Imagings, Chemical Shift,Imagings, Spin Echo,MRI Scan,MRIs, Functional,Magnetic Resonance Images,Resonance Image, Magnetic,Scan, MRI,Scans, MRI,Shift Imaging, Chemical,Shift Imagings, Chemical,Spin Echo Imagings,Steady State Free Precession MRI
D008297	Male		Males
D009408	Nerve Compression Syndromes	Mechanical compression of nerves or nerve roots from internal or external causes. These may result in a conduction block to nerve impulses (due to MYELIN SHEATH dysfunction) or axonal loss. The nerve and nerve sheath injuries may be caused by ISCHEMIA; INFLAMMATION; or a direct mechanical effect.	Entrapment Neuropathies,Nerve Entrapments,External Nerve Compression Syndromes,Internal Nerve Compression Syndromes,Nerve Compression Syndromes, External,Nerve Compression Syndromes, Internal,Compression Syndrome, Nerve,Compression Syndromes, Nerve,Entrapment, Nerve,Entrapments, Nerve,Nerve Compression Syndrome,Nerve Entrapment,Neuropathies, Entrapment,Neuropathy, Entrapment,Syndrome, Nerve Compression,Syndromes, Nerve Compression
D009465	Neuromuscular Agents	Drugs used for their actions on skeletal muscle. Included are agents that act directly on skeletal muscle, those that alter neuromuscular transmission (NEUROMUSCULAR BLOCKING AGENTS), and drugs that act centrally as skeletal muscle relaxants (MUSCLE RELAXANTS, CENTRAL). Drugs used in the treatment of movement disorders are ANTI-DYSKINESIA AGENTS.	Skeletal Muscle Relaxants,Neuromuscular Effect,Neuromuscular Effects,Agents, Neuromuscular,Effect, Neuromuscular,Effects, Neuromuscular,Muscle Relaxants, Skeletal,Relaxants, Skeletal Muscle
D005155	Facial Nerve Diseases	Diseases of the facial nerve or nuclei. Pontine disorders may affect the facial nuclei or nerve fascicle. The nerve may be involved intracranially, along its course through the petrous portion of the temporal bone, or along its extracranial course. Clinical manifestations include facial muscle weakness, loss of taste from the anterior tongue, hyperacusis, and decreased lacrimation.	Acquired Facial Neuropathy,Cranial Nerve VII Diseases,Facial Myokymia,Facial Neuropathy,Geniculate Ganglionitis,Cranial Nerve VII Disorders,Facial Nerve Disorders,Facial Nerve Motor Disorders,Facial Nerve Sensory Disorders,Facial Neuritis,Familial Facial Neuropathy,Motor Disorders, Facial Nerve,Sensory Disorders, Facial Nerve,Seventh Cranial Nerve Diseases,Acquired Facial Neuropathies,Disease, Facial Nerve,Diseases, Facial Nerve,Disorder, Facial Nerve,Disorders, Facial Nerve,Facial Myokymias,Facial Nerve Disease,Facial Nerve Disorder,Facial Neuritides,Facial Neuropathies,Facial Neuropathies, Acquired,Facial Neuropathies, Familial,Facial Neuropathy, Acquired,Facial Neuropathy, Familial,Familial Facial Neuropathies,Ganglionitides, Geniculate,Ganglionitis, Geniculate,Geniculate Ganglionitides,Myokymia, Facial,Myokymias, Facial,Neuritides, Facial,Neuritis, Facial,Neuropathies, Facial,Neuropathies, Familial Facial,Neuropathy, Facial,Neuropathy, Familial Facial
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D014715	Vertebrobasilar Insufficiency	Localized or diffuse reduction in blood flow through the vertebrobasilar arterial system, which supplies the BRAIN STEM; CEREBELLUM; OCCIPITAL LOBE; medial TEMPORAL LOBE; and THALAMUS. Characteristic clinical features include SYNCOPE; lightheadedness; visual disturbances; and VERTIGO. BRAIN STEM INFARCTIONS or other BRAIN INFARCTION may be associated.	Basilar Artery Insufficiency,Basilar Artery Stenosis,Vertebral Artery Insufficiency,Vertebral Artery Stenosis,Basilar Artery Ischemia,Basilar Insufficiency,Vertebral Artery Ischemia,Vertebro-Basilar Insufficiency,Vertebro-Basilar Ischemia,Vertebrobasilar Dolichoectasia,Vertebrobasilar Ischemia,Artery Insufficiencies, Basilar,Artery Insufficiencies, Vertebral,Artery Insufficiency, Basilar,Artery Insufficiency, Vertebral,Artery Ischemia, Basilar,Artery Ischemia, Vertebral,Artery Ischemias, Basilar,Artery Ischemias, Vertebral,Artery Stenoses, Basilar,Artery Stenoses, Vertebral,Artery Stenosis, Basilar,Artery Stenosis, Vertebral,Basilar Artery Insufficiencies,Basilar Artery Ischemias,Basilar Artery Stenoses,Basilar Insufficiencies,Dolichoectasia, Vertebrobasilar,Dolichoectasias, Vertebrobasilar,Insufficiencies, Basilar,Insufficiencies, Basilar Artery,Insufficiencies, Vertebral Artery,Insufficiencies, Vertebro-Basilar,Insufficiencies, Vertebrobasilar,Insufficiency, Basilar,Insufficiency, Basilar Artery,Insufficiency, Vertebral Artery,Insufficiency, Vertebro-Basilar,Insufficiency, Vertebrobasilar,Ischemia, Basilar Artery,Ischemia, Vertebral Artery,Ischemia, Vertebro-Basilar,Ischemia, Vertebrobasilar,Ischemias, Basilar Artery,Ischemias, Vertebral Artery,Ischemias, Vertebro-Basilar,Ischemias, Vertebrobasilar,Stenoses, Basilar Artery,Stenoses, Vertebral Artery,Stenosis, Basilar Artery,Stenosis, Vertebral Artery,Vertebral Artery Insufficiencies,Vertebral Artery Ischemias,Vertebral Artery Stenoses,Vertebro Basilar Insufficiency,Vertebro Basilar Ischemia,Vertebro-Basilar Insufficiencies,Vertebro-Basilar Ischemias,Vertebrobasilar Dolichoectasias,Vertebrobasilar Insufficiencies,Vertebrobasilar Ischemias
D019274	Botulinum Toxins, Type A	A serotype of botulinum toxins that has specificity for cleavage of SYNAPTOSOMAL-ASSOCIATED PROTEIN 25.	Botulinum Neurotoxin Type A,Botulinum Toxin A,Botulinum Toxin Type A,Botox,Botulinum A Toxin,Botulinum Neurotoxin A,Clostridium Botulinum Toxin Type A,Clostridium botulinum A Toxin,Meditoxin,Neuronox,Oculinum,Onabotulinumtoxin A,OnabotulinumtoxinA,Vistabel,Vistabex,Neurotoxin A, Botulinum,Toxin A, Botulinum,Toxin, Botulinum A