Olfactory Colloid Cyst: Case Report and Review of Extraventricular Colloid Cyst Literature

Objective A rare case of an extraventricular colloid cyst located in the olfactory groove extending downward into the ethmoid sinus is presented. This is the second reported case in the world literature. Methods A 56-year-old-woman presented with a lesion that was causing hyposmia and cerebrospinal...

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Bibliographic Details
Published in:World neurosurgery 2014, Vol.81 (1), p.202.e19-202.e22
Main Authors: Staub, Blake N, Rangel-Castilla, Leonardo, Olar, Adriana, Baskin, David S
Format: Article
Language:English
Subjects:
Cerebrospinal Fluid Rhinorrhea - complications
Colloid cyst
Colloid Cysts - pathology
Colloid Cysts - surgery
Craniotomy
Ethmoid Sinus - pathology
Ethmoid Sinus - surgery
Extraventricular
Female
Humans
Image Processing, Computer-Assisted
Immunohistochemistry
Magnetic Resonance Imaging
Middle Aged
Neurosurgery
Neurosurgical Procedures
Olfactory
Olfactory Nerve Diseases - pathology
Olfactory Nerve Diseases - surgery
Treatment Outcome
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Summary:Objective A rare case of an extraventricular colloid cyst located in the olfactory groove extending downward into the ethmoid sinus is presented. This is the second reported case in the world literature. Methods A 56-year-old-woman presented with a lesion that was causing hyposmia and cerebrospinal fluid rhinorrhea. The lesion was an extraventricular colloid cyst displacing the left olfactory nerve downward and eroding into the left ethmoid sinus. Results The lesion was excised, and the anterior skull base was reconstructed successfully via a unilateral subfrontal approach. Conclusions There were no complications, and the patient made a full recovery, with resolution of the cerebrospinal fluid rhinorrhea.
ISSN:1878-8750
1878-8769
DOI:10.1016/j.wneu.2013.07.080