Abstract

Background: Coccydynia is pain around the coccygeal region without any definite point. This remains unclear in the beginning about the origin and nature of pain. Presacral epidermoids can either be diagnosed as an incidental finding or when these become symptomatic.
Case Presentation: We present 35-years old female having coccydynia of one year duration. There was no relief of pain with symptomatic management as plain X-ray study was unremarkable. She was found to be having presacral epidermoid on imaging studies by Computerized Tomography (CT) and Magnetic Resonance Imaging (MRI).
Conclusion: Being asymptomatic in nature Presacral Epidermoids remains undiagnosed for a long time. The cross-sectional imaging modalities as MRI is the key investigation for the diagnosis. DWI sequences play a key role in the work up diagnosis of Presacral Epidermoids.

Key words: Coccydynia, presacral, epidermoid, CT, MRI, case report