• World Neurosurg · Sep 2019

    Pituitary adenoma concomitant with Chiari I Malformation: Case report and literatura review.

    • Juan F Villalonga, Martin Pilonieta, Juan M Revuelta Barbero, Ricardo L Carrau, and Daniel M Prevedello.
    • LINT, Facultad de Medicina, Universidad Nacional de Tucumán, Tucumán, Argentina.
    • World Neurosurg. 2019 Sep 1; 129: 45-48.

    BackgroundPituitary adenomas (PA) are usually benign neoplasms. Chiari I malformation (CIM) is an uncommon finding. Isolated cases associating functional PA and CIM have been reported. The concomitant presence of a nonfunctional PA and a CIM has not yet been described in the literature.Case DescriptionWe present the case of a 35-year-old patient whose symptoms were compatible with CIM. Magnetic resonance imaging of the brain, with and without contrast material, confirmed the CIM and incidentally encountered a PA. The patient was treated initially for her PA through an endoscopic endonasal approach with complete tumor resection, confirming a nonfunctional PA. Posterior fossa decompression was successfully accomplished 3 months later. The patient has been followed up for 5 years and has been free of symptoms, with no recurrence of her PA. This represents the first reported case of a nonfunctional PA with a concomitant CIM.ConclusionThis is the first reported case of a concomitant CIM and a nonfunctional PA. We discuss our successful management and conduct a systematic review of the literature to provide the most up-to-date guidance on managing these singular cases with concomitant pathologic conditions.Copyright © 2019 Elsevier Inc. All rights reserved.

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