Magnetic Resonance Imaging Features of Chronic Foreign-Body Granulomatous Reaction Following Gluteal Dermal Filler Injection: A Clinical Radiological Case Report

AbstractThe increasing global demand for cosmetic body contouring has led to a rise in complications associated with illicit or unregulated dermal filler injections, particularly in the gluteal region. These complications may present months or years after injection and pose diagnostic challenges due to nonspecific clinical symptoms. Magnetic resonance imaging (MRI) plays a crucial role in characterizing the extent, distribution, and tissue involvement of injected foreign materials and their inflammatory sequelae. We present a case of a young female patient with chronic bilateral gluteal symptoms following dermal filler injection, highlighting the characteristic MRI findings of a foreign-body granulomatous reaction and correlating these with clinical and surgical observations. This case emphasizes the diagnostic value of MRI in differentiating filler-related complications from other soft-tissue pathologies and in guiding appropriate management.