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Endoscopic Approach for Colloid Cyst Resection
Published on: May 23, 2025
Intracranial epidermoid cyst and syringohydromyelia in a dog
Edward MacKillop1, Scott J Schatzberg, Alexander De Lahunta
1North Carolina State University College of Veterinary Medicine, 4700 Hillsborough Street, Raleigh, NC 27606-1428, USA. edward_mackillop@ncsu.edu
Abstract:
A 5-year-old female Cocker Spaniel dog had a sudden onset of vestibular disease that localized to the caudal fossa. Upon computed tomography of the brain, a large, hypoattenuating mass with a slight peripheral ring enhancement pattern was detected ventral to the cerebellum. A hypoattenuating region was also identified in the center of the C2 spinal cord segment, consistent with syringohydromyelia. Postmortem examination of the brain revealed a fluid filled, cystic mass located dorsal to medulla oblongata that caused severe compression of the overlying cerebellum. The histopathologic diagnosis was an epidermoid cyst. Extensive syringohydromyelia and obstructive hydrocephalus were identified, both thought to be secondary to overcrowding of the caudal fossa.
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