The imaging findings, in this case, are suggestive of Haberland's syndrome, also known as encephalocraniocutaneous lipomatosis.
Encephalocraniocutaneous lipomatosis was described in 1970 by Haberland and Perou 1,2. Approximately 53 cases have been reported in the literature 1. This congenital neurocutaneous disorder involves a number of systems consisting of a lipomatous cutaneous lesions, unilateral ocular and neurological malformations. The exact cause is unknown and postulated to be due to ectodermal dysgenesis.
There is a clinical spectrum with some patients leading normal lives, with normal psychomotor development. Others may have neurological complications, seizures and a reduced IQ. The characteristic dermatological findings are present at birth, but seizures may not present until later, and can develop at any time.
The characteristic skin lesion is a "nevus psiloliparus", which means a hairless fat nevus. This is a unilateral soft tissue mass, does not cross the midline, often covered by telangiectasia and devoid of hair 3. It is considered pathognomonic. It may be bilateral but is more commonly unilateral. The lesions of the eyelid are most frequently lipomas 1.
Cerebral imaging shows a unilateral porencephalic cyst with ipsilateral cortical atrophy and meningeal enhancement, cranial asymmetry, intracranial lipomas, cranial asymmetry. Cerebral manifestations are ipsilateral to the nevus psiloliparus.