Musculoskeletal CT Appearances

Osteoma CT Findings

• Small spherical tumor
• Measures < 2cm, usually <1cm
• Intracortical atypical bone (“nidus”)
• The nidus has low density and high density zones
• Can involve any bone

Other Information About Osteoma

Etiology:

• Unknown

Epidemiology:

• Male to female ratio 3:1
• Most commonly present between ages 5-25

Presentation:

• Dull, achy pain
• Pain is usually nocturnal
• Bone deformity like scoliosis or bowed long bones
• Muscle atrophy
• Joint stiffness
• Limping

Prognosis:

• Osteomas are benign
• Pain can be managed with pain medication
• More serious cases may require surgery