Posterior Fossa AVM Producing Hemifacial Spasm: A Case Report

Mature teratomas (MTs) of the posterior fossa are extremely rare. The authors present a case of a prenatal diagnosis of an MT splitting the brainstem. Representative images as well as the clinical and surgical course are presented. Literature regarding “split brainstem” and MT of the posterior fossa is discussed.

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Hemifacial Spasm Due to a Large Distant Ipsilateral Posterior Fossa Meningioma

Skull Base ◽

10.1055/s-2000-6787 ◽

2000 ◽

Vol Volume 10 (Number 1) ◽

pp. 0043-0046 ◽

Cited By ~ 3

Author(s):

Gregory S. Harrison ◽

Peter Chovan ◽

Joung H. Lee

Keyword(s):

Posterior Fossa ◽

Hemifacial Spasm ◽

Posterior Fossa Meningioma

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EXTENSIVE SPINAL CORD INFARCTION AFTER POSTERIOR FOSSA SURGERY IN THE SITTING POSITION: CASE REPORT

Neurosurgery ◽

10.1227/01.neu.0000125008.93625.5e ◽

2004 ◽

Vol 54 (6) ◽

pp. 1512-1516 ◽

Cited By ~ 26

Author(s):

Xavier Morandi ◽

Laurent Riffaud ◽

Seyed F.A. Amlashi ◽

Gilles Brassier

Keyword(s):

Spinal Cord ◽

Case Report ◽

Posterior Fossa ◽

Spinal Cord Infarction ◽

Posterior Fossa Surgery ◽

Sitting Position

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Chiari Type I Malformation Presenting as Hemifacial Spasm: Case Report

Neurosurgery ◽

10.1227/01.neu.0000166688.69081.8b ◽

2005 ◽

Vol 57 (2) ◽

pp. E371-E371 ◽

Cited By ~ 12

Author(s):

Mustafa Efkan Colpan ◽

Zeki Sekerci

Keyword(s):

Facial Nerve ◽

Posterior Fossa ◽

Hemifacial Spasm ◽

Chiari I Malformation ◽

Posterior Fossa Decompression ◽

Type I ◽

Chiari Type I Malformation ◽

Downward Displacement ◽

Facial Spasm ◽

Chiari I

ABSTRACT OBJECTIVE AND IMPORTANCE: We report on a patient with a Chiari I malformation presenting with right hemifacial spasm. Clinicians should consider the downward displacement of the hindbrain as a rare cause of hemifacial spasm in Chiari I malformation. CLINICAL PRESENTATION: An 18-year-old man was admitted with right hemifacial spasm. The results of the neurological examination were normal except for the facial spasm. Magnetic resonance imaging demonstrated a Chiari I malformation without syringomyelia. After surgery, the hemifacial spasm completely resolved. INTERVENTION: Posterior fossa decompression, C1 laminectomy, and duraplasty were performed. CONCLUSION: The hemifacial spasm could be attributed to compression and/or traction of the facial nerve because of downward displacement of the hindbrain in Chiari I malformation. Compression and/or traction might create irritation of the facial nerve that causes hemifacial spasm. Resolution of the hemifacial spasm after posterior fossa decompression could explain the facial nerve irritation in Chiari I malformation. Clinicians should consider Chiari malformation as a cause of hemifacial spasm and posterior fossa decompression as a potential treatment.

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Blake's Pouch Cyst: A Case Report

Indian Journal of Neurosurgery ◽

10.1055/s-0037-1601357 ◽

2017 ◽

Vol 06 (02) ◽

pp. 122-125

Author(s):

Saurabh Verma ◽

M. Sridhar ◽

S. Shashivadhanan ◽

Manish Garg

Keyword(s):

Genetic Counseling ◽

Case Report ◽

Literature Review ◽

Posterior Fossa ◽

Clinical Management ◽

In Utero ◽

Prenatal Ultrasound ◽

Male Child ◽

Imaging Studies ◽

Initial Imaging

AbstractIt is a rare and underdiagnosed entity. The adagium “one only sees what one knows” is certainly true in cases of Blake's pouch cyst, as all types of posterior fossa cysts and cyst-like malformations may present nearly identical on initial imaging studies. Only one case of Blake's pouch cyst has been reported from this country, except for a case in utero, in which a diagnosis of Blake's pouch cyst was made on prenatal ultrasound and later confirmed by MRI. In this report we describe a case of Blake's pouch cyst in a 9-month-old male child along with the principles of diagnosis of Blake's pouch cyst, in combination with literature review. Differentiating Blake's pouch cyst from other posterior fossa cysts and cyst-like malformations and recognizing the accompanying hydrocephalus that are essentially noncommunicating have important implications not only on clinical management but also on genetic counseling, which is unnecessary in case of Blake's pouch cyst.

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