• World Neurosurg · Dec 2022

    Minimally Invasive, Supine, Lateral Supracerebellar Infratentorial (SCIT) Approach for Resection of a Pineal Cyst.

    • Kaan Yağmurlu and KalaniM Yashar SMYSDepartment of Neurological Surgery, St. John's Neuroscience Institute, Tulsa, Oklahoma, USA. Electronic address: yashar.kalani@ascension.org..
    • Department of Neurosurgery, University of Tennessee School of Medicine, Memphis, Tennessee.
    • World Neurosurg. 2022 Dec 1; 168: 205205.

    AbstractMost pineal cysts are not surgical lesions and should be conservatively managed. Select lesions, notably those that present with hydrocephalus and Parinaud syndrome and lesions presenting with symptoms consistent with intermittent blockage of cerebrospinal fluid pathways and/or neurovascular compression, however, can be considered for surgical intervention. Two workhorse surgical approaches to the pineal region include the occipital interhemispheric transtentorial and supracerebellar infratentorial approaches. Each approach provides unique benefits and drawbacks and is associated with morbidities. In this patient, we demonstrate the use of a minimally invasive, supine, lateral supracerebellar infratentorial approach to the pineal region (Video 1). The approach makes use of early access to the foramen magnum to release cerebrospinal fluid for cerebellar relaxation, followed by navigation-guided, minimal dissection of the supracerebellar potential space to arrive at the pineal cyst. Opening of the arachnoid membranes ventrolateral to the confluence of the deep cerebral veins allows for direct access to the cyst with minimal manipulation of the venous complex and risk for injury. The cyst is then fenestrated, and the cyst capsule is removed. It should be noted that surgical fenestration does not guarantee relief of headache symptoms, and patients should be consoled about this preoperatively.Copyright © 2022 Elsevier Inc. All rights reserved.

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