Spontaneous Shrinkage of Cystic Acoustic Neuroma: A Case Report.

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Spontaneous Shrinkage of Cystic Acoustic Neuroma: A Case Report.

World Neurosurg. 2019 Jan 24;:

Authors: Preet K, Udawatta M, Romiyo P, Gopen Q, Yang I

Abstract
BACKGROUND: Cystic acoustic neuromas typically present with more rapid growth and shorter symptomatic periods when compared to solid tumors.
CASE PRESENTATION: We present the case of a 70-year-old male patient with unilateral sensorineural hearing loss, frequent falls, and worsening ataxia. Magnetic resonance imaging (MRI) confirmed a 33.9 cm3 cystic acoustic neuroma with mass effect on the brainstem and cerebellum. Subsequent MRI scans revealed tumor measurements of 38.2 cm3, 37.6 cm3, 23.8 cm3, and 14.3 cm3 in size at 3, 6, 9 and 15 months after initial presentation, respectively.
CONCLUSION: Spontaneous tumor regression was accompanied with reduced mass effect on neighboring structures and improved symptoms. Due to their unpredictable growth patterns, early surgical resection has been recommended for cystic acoustic neuromas. However, we present the case of a patient with spontaneous tumor involution following conservative management. Further research on the growth patterns of cystic schwannomas is imperative in order to properly counsel patients and improve treatment strategies.

PMID: 30685372 [PubMed - as supplied by publisher]

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