Dumbbell-Shape Hydatid Cyst of Meckel's Cave Extending to the Cerebellopontine Angle and Middle Fossa; Surgical Technique and Outcome of a Rare Case.

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Dumbbell-Shape Hydatid Cyst of Meckel's Cave Extending to the Cerebellopontine Angle and Middle Fossa; Surgical Technique and Outcome of a Rare Case.

World Neurosurg. 2017 May 25;:

Authors: Taghipour M, Saffarrian A, Ghaffarpasand F, Azarpira N

Abstract
BACKGROUND: Cerebral hydatid cyst is among the rare presentations of echinococcosis. Almost all the reported cases of the intracranial hydatid cysts are in cortical regions (parietal lobe in the territory of the middle cerebral artery) and all have been removed surgically using water jet dissection technique. However, in locations in which there are several neuronal structures such as cerebellopontine angle this method might not be applicable.
CASE DESCRIPTION: A 62-year-old lady presented to our outpatient clinic with left sided facial deviation, inability to close the eyes and diplopia since a month before. She was diagnosed to have a dumbbell-shape lesion in Meckel's cave extending to the left cerebellopontine (CP) angle and middle fossa just lateral to the cavernous sinus. As it was adherent to the surrounding structures, we evacuated the contents using a fine needle and then dissected the cyst totally. The patient's symptoms alleviated after the surgery and there was no residue. After 2-year-follow up the patient does not have recurrence.
CONCLUSIONS: Meckel's cave and CP angle is rare locations for hydatid cyst and the surgical technique is different due to adhesion of the cyst to several neuronal structures (lower cranial nerve, brain stem and the cerebellum). Needle aspiration along with dissection of the cyst microsurgically is recommended in similar cases.

PMID: 28552738 [PubMed - as supplied by publisher]

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