Glial Heterotopia of the Scalp in an Infant

A 4-month-old male infant presented with a painless scalp swelling (3x2cm) at the occipital region since birth. On examination, it was non-tender, soft, and non-compressible. The swelling was surrounded by a circle of long coarse hair. There was no impulse on crying and an underlying bony defect was not evident. There was history of single episode of the clear fluid discharge from the swelling. CT scan showed a midline, well circumscribed, extra cranial, heterogeneous swelling without the bony defect. The underlying intracranial structures were normal and separate from the extracranial mass lesion (Fig.1).