Frontal subcutaneous lipoma associated with large interhemispheric lipoma and corpus callosum agenesis.

Intracranial lipomas are extremely rare fat-containing lesions that comprise 0.1%-0.5% of all primary brain tumors. They are congenital lesions that arise due to persistence and maldifferentiation of the meninx primitive (subarachnoid space precursor). We report a case of a 30-year-old woman who presented with seizures due to an intracranial lipoma and no neurological deficits. CT (computerized tomography) imaging findings demonstrated a large interhemispheric partially calcified lipoma that communicated with a large scalp lipoma and was associated with agenesis of the corpus callosum. Compared to the prior CT imaging, the lipoma increased in size from 3.4 cm to 4.1 cm transversely. A recent CT angiogram done due to suspicion of an aneurysm showed the lipoma now measuring 6 cm by 4.7 cm. Most cases of intracranial lipoma have been reported in the pediatric age group. Here, we report a rare case of interhemispheric intracranial lipoma in the adult age group. This case also demonstrates the importance of imaging modalities for detecting intracranial lipoma without performing invasive brain biopsy. Published by Elsevier Inc. on behalf of University of Washington.

Citation

Dhara Rana, Sayali Kulkarni, Jamshed Zuberi, Fred Berlin. Frontal subcutaneous lipoma associated with large interhemispheric lipoma and corpus callosum agenesis. Radiology case reports. 2022 Mar;17(3):816-820

PMID: 35024083

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