- Dermatomyositis
- Myositis
- Osteomyelitis and its appearance at different ages – neonatal, beyond neonatal to 18 months, greater than 18 months
- Osteomyelitis and its complications of subacute osteomyelitis and Brodie abscess and chronic osteomyelitis and sequestrum, involucrum, cloaca
- Osteomyelitis and its appearance depending upon the organism (tuberculous osteomyelitis) and its location (osteomyelitis diskitis)
- Congenital osteomyelitis (syphilis and rubella)
- Chronic recurrent multifocal osteomyelitis (CRMO)
Approach to the differential diagnosis of musculoskeletal infection:
- Myositis is an infectious inflammation of the muscles
- Dermatomyositis is a non-infectious inflammation of the muscles
- Osteomyelitis has a different imaging appearance at different ages and with different organisms and in different locations
- Osteomyelitis if not properly treated can develop the complications of Brodie abscess, sequestrum, involucrum, and sinus tract
- Congenital osteomyelitis due to syphilis and rubella can occur
- Chronic recurrent multifocal osteomyelitis (CRMO) is non-infectious osteomyelitis and should be suspected when no organism can be isolated and the patient does not respond to antibiotic therapy
Pediatric Imaging 