case_images: PMC10032430_01
case_images: Initial MRI study demonstrates an epidermoid situated in the fourth
  ventricle. The epidermoid restricts diffusion, is heterogeneous on sagittal
  T1, axial T2 weighted and FLAIR images and does not enhance (yellow
  arrows).. MRI, magnetic resonance imaging.
case_images: 10.1177_2633004020969702-fig1.jpg
case_images: PMC10032430_01_10.1177_2633004020969702-fig1.jpg
case_images: fig1-2633004020969702
case_images: A 42-year-old male with a clinical history of Gardner syndrome and multiple sclerosis underwent magnetic resonance imaging (MRI) evaluation which revealed a 1.8 cm heterogeneous mass without enhancement within the fourth ventricle (Figure 1).
case_images: MRI performed 6 years following the initial study reveals interval growth of
  the epidermoid cyst (yellow arrows).. MRI, magnetic resonance imaging.
case_images: 10.1177_2633004020969702-fig2.jpg
case_images: PMC10032430_01_10.1177_2633004020969702-fig2.jpg
case_images: fig2-2633004020969702
case_images: The mass restricted diffusion and was followed subsequently by the Department of Neurosurgery (Figure 2).
case_images: Follow up MRI performed 10 years following initial study reveals progressive
  enlargement of the epidermoid cyst. The lesion restricts diffusion, is
  heterogeneous on T2 weighted and flair images and does not enhance (yellow
  arrows).. MRI, magnetic resonance imaging.
case_images: 10.1177_2633004020969702-fig3.jpg
case_images: PMC10032430_01_10.1177_2633004020969702-fig3.jpg
case_images: fig3-2633004020969702
case_images: The mass demonstrated progressive enlargement and, at 10 years, now measures 2.7 cm in greatest dimension (Figure 3).