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Updated: Jan 31, 2026

Microscopic Cyst Resection for the Treatment of Patients Diagnosed with Epididymal Cyst
Published on: March 31, 2023
Evolution of epidermoid cyst into dermoid cyst: Embryological explanation and radiological-pathological correlation
Parthiban Balasundaram1, Ajay Garg1, Anuj Prabhakar1
11 Department of Neuroimaging and Interventional Neuroradiology, All India Institute of Medical Sciences, India.
Abstract:
Intracranial dermoid and epidermoid cysts are usually considered to be two different entities in the radiological and surgical literature. Epidermoid cysts are classically off midline in location, isointense to cerebrospinal fluid on T1 and T2-weighted images and have restricted diffusion, whereas dermoid cysts are classically midline in location, have T1-hyperintense regions due to the presence of fat and show facilitated diffusion. We report a case of radiological epidermoid cyst in baseline imaging, which evolved into a radiological dermoid cyst over time, and explain this unique occurrence with a review of the embryology and histopathogenesis of these cysts.
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