![]() ![]() ![]() ![]() The core of the lesion showed a modest diffusion restriction with no contrast enhancement ( Figure 1e). It appeared to be isointense on T1WI and slightly hyperintense on T2WI/FLAIR with a T1WI, T2WI, FLAIR hyperintense peripheral rim ( Figure 1a,c,d). The MRI scan showed a left-sided, intracranial, and extra-axial lesion in the temporo–occipital region with a thecal epicentrum. Physical and neurological examinations and blood tests were negative. In conclusion, it is crucial to familiarize with atypical dermoid presentation to ensure proper diagnoses and to perform adequate imaging for optimal surgical planning.įirst Case: C.G., a 27-year-old man, presenting with nausea and persistent left migraine, underwent an MRI scan ( Figure 1). Rupturing or damaging of the venous drainage system have been proven to be catastrophic because they lengthen surgical time and present dire consequences for patients. The challenge of this tumor location is to preserve the venous drainage system during surgical procedures, because of the contiguity between the asterion and the transverse–sigmoid junction. It is crucial to correctly diagnose intracranial masses and to identify their relationships with surrounding anatomical structures, especially if the location is unusual as the asterion, to plan surgery. Patients presented with non-specific symptoms and underwent surgical excision of the lesions. We report a case series of three asterional intracranial dermoid cysts, which, to the best of our knowledge, have never been described before. Asterion is an uncommon site for lesions, especially dermoid cysts. ![]()
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