Fig. 3
From: Molecular imaging for evaluation of synovitis associated with osteoarthritis: a narrative review
18F-FDG uptakes around the hip joints with osteoarthritis. Fused coronal 18F-FDG PET-CT image of the pelvis demonstrates severe left hip OA with advanced joint space narrowing, severe subchondral cyst formation particularly within the left femoral head, subchondral sclerosis, and acetabular remodeling (acetabular protrusion). In addition, extensive hypermetabolic activity is seen within the left femoral head suggestive of osteitis as well as along the periphery of the left hip joint suggestive of synovitis