For the 2024 Image Competition, the ACR sought images with educational or remarkable manifestations representing a diverse range of pediatric patients with autoimmune, inflammatory, infectious and malignant drivers of rheumatic disease. Here, we showcase the winning images from the Middle East and North Africa.
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Lipoma Arborescens Revealed
A 10-year-old boy, presented with a five-year history of recurrent right knee pain and swelling, associated with mildly elevated inflammatory markers. Ultrasound of the right knee demonstrated a lobulated echogenic mass with frond-like projections in the suprapatellar region with joint effusion (A). The sagittal view magnetic resonance imaging scan (MRI) showed a suprapatellar heterogenous high signal mass at the suprapatellar pouch with frond-like projections (B). This mass was suppressed in the fat saturated MRI reflecting the fat component of the lesion surrounded by a hyperintense effusion (C) characteristic of lipoma arborescens.
