ABSTRACT
Heterotopic brain tissue is defined as displaced neuroglial tissue that has no connection with the central nervous system. As there is no communication with underlying structures, serious anomalies rarely occur. A 6-year-old Korean male presented an erythematous, non tender nodule measuring 1.5X1.5X0.5cm on right parietal scalp since birth. The lesion was covered with thickened alopetic skin. There was no neurologic defect. The mass was not connected with intracranial structures on a magnetic resonance imaging.
Subject(s)
Child , Humans , Male , Brain , Central Nervous System , Magnetic Resonance Imaging , Parturition , Rabeprazole , Scalp , SkinABSTRACT
An unusual case of glroependymal cyst involving the lateral ventricle, 3rd ventricle, cerebellopontine angle cistern and prepontine cistern, simultaneously, is reported. The glroependymal cyst is benign developmental cyst that mainly occurs in the cerebrospinal axis in relation to ventricle, but occasionally occurs in relation to extraventricular system, such as subarachnoid space, brain stem and cerebral parenchyme. The histological characteristics of ependymal cyst wall are ependyma-like epithelium and neuroglial tissue.