Malignant transformation of residual posterior fossa epidermoid cyst to squamous cell carcinoma

Abstract

Malignant transformation of intracranial epidermoid cysts to squamous cell carcinoma is a rare occurrence and only a small number have been reported to date. MRI recurrence in combination with neurological decline should prompt surgery to exclude malignant transformation. Herein, we describe our experience of such a case and contribute to the evolving series within the literature.

Keywords:

• CP angle
• epidermoid cyst
• malignant transformation
• squamous cell carcinoma

Declaration of interest

The authors report no declarations of interest. The authors alone are responsible for the content and writing of the paper.