Occipital intraosseous dermoid cyst with restricted diffusion on magnetic resonance imaging in a child

• Type of Material: Article
• Authors: Amy Tsai, Boston Medical Center; Tatiana Filina, Children's Hospital Boston; Nadja Kadom, Emory University; Anna Trofimova, Emory University
• Language: English
• Date: 2018-02-01
• Publisher: Elsevier
• Publication Version: Final Published Version
• Copyright Statement: © 2017 The Authors
• License: Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International
• Final Published Version (URL): http://dx.doi.org/10.1016/j.radcr.2017.10.021
• Title of Journal or Parent Work: Radiology Case Reports
• ISSN: 1930-0433
• Volume: 13
• Issue: 1
• Start Page: 248
• End Page: 253
• Keywords: Intraosseous; CT; Occipital; Dermoid cyst; MRI
• Research Categories: Health Sciences, Medicine and Surgery

Abstract

A 4-year-old girl presented repeatedly with a complicated occipital mass, which was erroneously treated as a pyogenic granuloma. Imaging performed before a planned surgical resection detected an underlying intraoccipital dermoid with a sinus tract to the skin surface and extension into the posterior fossa. This case highlights the value of high-resolution computed tomography imaging for depiction of anatomic details and the value of magnetic resonance imaging for differential diagnosis and surgical management. A comprehensive literature review of intraosseous dermoid cyst and detailed discussion of the differential diagnoses are provided.