case_images: PMC11741017_01
case_images: Anteroposterior radiograph of the right elbow showing marginal periarticular osteolysis and elbow subluxation.
case_images: gr1.jpg
case_images: PMC11741017_01_gr1.jpg
case_images: f0005
case_images: Standard radiological assessment, including anteroposterior and lateral plain radiographs of the right elbow, showed marginal periarticular osteolysis and elbow subluxation (Fig. 1A, Fig. 1B).
case_images: Lateral plain radiograph of the right elbow demonstrating marginal periarticular osteolysis and elbow subluxation.
case_images: gr2.jpg
case_images: PMC11741017_01_gr2.jpg
case_images: f0010
case_images: Hypertrophic synovium resembling a pseudotumor, bone erosion, and minimal purulent drainage were also observed (Fig. 2).
case_images: Intraoperative image showing the surgical exploration of the lateral aspect of the elbow. The image reveals osteocartilaginous and capsuloligamentous destruction in the anterolateral region, extending into the adjacent soft tissues. Additionally, there is hypertrophic synovium resembling a pseudotumor, accompanied by bone lysis and minimal purulent discharge.
case_images: gr3.jpg
case_images: PMC11741017_01_gr3.jpg
case_images: f0015
case_images: An external fixator was applied to stabilize the joint and address anterior-lateral instability, followed by joint immobilization (Fig. 3A, Fig. 3B).
case_images: Anteroposterior radiograph of the right elbow demonstrating the utilization of an external fixator for stabilization.
case_images: gr4.jpg
case_images: PMC11741017_01_gr4.jpg
case_images: f0020
case_images: Histopathological examination of the synovial biopsy specimen revealed granulomatous inflammation with areas of caseous necrosis, surrounded by epithelioid histocytes, Langhans-type giant cells, and lymphocytes (Fig. 4A, Fig. 4B, Fig. 4C, Fig. 4D).