Investig Magn Reson Imaging.  2018 Sep;22(3):172-176. 10.13104/imri.2018.22.3.172.

Coexistence of Intracranial Squamous Cell Carcinoma and Epidermoid Cyst: a Case with Consecutive Imaging Findings

  • 1Department of Radiology and Research Institute of Radiology, University of Ulsan College of Medicine, Seoul, Korea.


In contrast to well-known imaging findings of intracranial epidermoid cysts on magnetic resonance imaging, those of intracranial squamous cell carcinoma (SqCC) are relatively unknown. We present a case of coexistence of intracranial SqCC and epidermoid cyst, with consecutive follow up over 14 months. Based on our case, a solid enhancing portion adjacent to a typically-looking epidermoid cyst may become a clue for coexistence of intracranial SqCC. An initial contrast enhancement and/or heterogeneous signal on diffusion weighted imaging may become a useful diagnostic clue, but more importantly, sudden rapid growth is important in formulating diagnosis.


squamous cell carcinoma; epidermoid cyst; magnetic resonance imaging
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