Abstract:
:Intracranial epidermoids are generally seen as hypodense nonenhancing lesions on computed tomography scans; and, as T1 hypointense and T2 hyperintense lesions on magnetic resonance imaging (MRI). Unusual radiological findings have been reported earlier. The authors present the case of a 54-year old male patient who had prior intracranial surgery. On MRI, there was a thick peripheral mantle of diffusion restriction with a central core of brilliant T1 hyperintensity and very black T2 hypointensity. The peripheral mantle showing diffusion restriction was heterogeneously T1 hypointense and T2 hyperintense. At surgery, there was a typical pearly white epidermoid peripherally with a greenish-brown centre. Pathology showed abundant extracellular melanin which was also found in the basal layer. The authors present the first case of a melanin pigmented intracranial epidermoid in literature, describing a new histological subtype.
journal_name
Neurol Indiajournal_title
Neurology Indiaauthors
Sridhar K,Vij Mdoi
10.4103/0028-3886.232336subject
Has Abstractpub_date
2018-05-01 00:00:00pages
763-766issue
3eissn
0028-3886issn
1998-4022pii
ni_2018_66_3_763_232336journal_volume
66pub_type
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