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Subarachnoid and intraventricular dissemination of fat secondary to intrathecal pain pump

Year: 2025

Type: article

Abstract: Radiologists frequently encounter intracranial fat in daily practice, typically representing physiologic or anatomic variations such as small fat deposits in the falx or well-known entities such as dermoid cysts, intracranial lipomas, and post-surgical/procedural dissemination after intracranial surgery and fat grafting. Among rare causes are subarachnoid and intraventricular migration of fat after spinal trauma or surgery. A rarer entity, intracranial migration of fat following intrathecal pain pump placement, has been reported in only two previous cases in the English literature. With this article, we present the third documented case to raise awareness of this potential differential diagnosis for subarachnoid fat dissemination, particularly in the absence of a history of trauma or intracranial surgery. Given that the etiological source may be distant from the imaging field of view, it can easily be overlooked in the differential diagnosis.

Source: Journal of Radiology Case Reports

DOI: 10.3941/jrcr.5676

Authors: Otavio Augusto Ferreira Dalla Pria, Christine M Gill, Krishnakumari Ashwinbhai Modi, Leonardo F. Freitas, Nitesh Shekhrajka

Institutions: University of Iowa Hospitals and Clinics, University of Iowa Health Care, Florida International University, Baptist Health South Florida

Language: English

Topic: Neurosurgical Procedures and Complications

Subfield: Neurology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

OpenAlex ID: W4412702397

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