Infant with a warm, red, swollen elbow

Radiograph of osteomyelitis beyond neonatal to 18 months
AP (left) and lateral radiographs (right) of the elbow show extensive periosteal reaction of the distal humerus and proximal ulna and an effusion of the elbow joint.

The diagnosis was beyond neonatal to 18 months osteomyelitis due to Gonococcus.