Pediatrics

Osteoid osteoma

Osteoid osteoma

Osteoid osteoma is a benign osteogenic tumor composed of osteogenic connective tissue and osteoid tissue, hence the name osteoid osteoma. This disease is common in adolescents, with a higher incidence in males. It is usually solitary and often occurs in long tubular bones, with 50% to 60% of cases found in the femur and tibia. A small number of cases occur in other bones throughout the body. The common symptom is progressively worsening pain.

Pyogenic arthritis

Pyogenic arthritis

Septic arthritis refers to a purulent infection within a joint, caused by bacterial infection. It is more common in children and is primarily characterized by joint redness, swelling, warmth, pain, and restricted movement. Septic arthritis most frequently affects the hip joint (located where the thigh connects to the buttocks) and the knee joint, followed by the elbow, shoulder, and ankle joints. Other joints are rarely affected.

Fibrous dysplasia of bone