Imaging Findings of an Epidermoid Cyst with Malignant Transformation to Squamous Cell Carcinoma

Ozutemiz C., Ada E., Ersen A. , Ozer E.

TURKISH NEUROSURGERY, vol.27, no.2, pp.312-315, 2017 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 27 Issue: 2
  • Publication Date: 2017
  • Doi Number: 10.5137/1019-5149.jtn.12722-14.0
  • Title of Journal : TURKISH NEUROSURGERY
  • Page Numbers: pp.312-315


We report imaging findings of a 64-year-old male patient with a ruptured epidermoid cyst (EC) known to be constant over the 23-year follow-up and showing malignant transformation to squamous cell carcinoma (SCC). Computed tomography (CT) and magnetic resonance imaging (MRI) findings including diffusion weighted imaging (DWI), 1H(+)MR spectroscopy (MRS), dynamic susceptibility contrast perfusion (DSC) MRI of EC, and its rare complications are presented together with a review of the literature. Fluid-low attenuated-inversion-recovery (FLAIR) and T1 -weighted images with gadolinium are the best sequences together with DWI to show the relationship of the EC, the SCC and the border between. Primary brain SCC enhances mostly ring-like or peripherally, but diffuse enhancement is also possible. To our knowledge, no MRS and DSC findings have been reported in the literature yet.