Specialists

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Skeletal Scintigraphy

Basics Description Skeletal scintigraphy is a nuclear medicine imaging method for bone disease. Advantages: High sensitivity for early detection of disease Whole body survey Disadvantage: Limited specificity Diagnosis Signs and Symptoms Indications Whole body skeletal scintigraphy: Primary bone tumors Osteomyelitis Joint prosthesis pain Occult fractures Stress fractures and shin splints Spondylosis Reflex sympathetic dystrophy […]

Sarcoma (Epitheloid and Synovial)

Basics Description Epithelioid sarcoma: A high-grade soft-tissue sarcoma that is prone to local recurrence, lymph node invasion, and pulmonary metastases. Most common soft-tissue sarcoma of the upper extremity Often confused with granulomatous processes Occurs often in young patients (15-40 years old) Synovial sarcoma: A high-grade malignancy on the soft tissue Occurs in para-articular regions […]

Sacral Insufficiency Fracture

Basics Description Sacral Insufficiency fractures occur in the sacral ala between the SI joints and the neural foramina (Denis Zone 1). The fracture pattern adopts a characteristic H-shape, which is pathonemonic of the condition. It is postulated that the vertical limbs of the H occur 1st, followed by the transverse fracture line. In ~50% […]

Popliteal Cyst in the Child

Basics Description Popliteal cyst is a painless soft-tissue mass in the medial popliteal fossa behind the knee. Epidemiology Most common soft-tissue lesion about the knee in children Affects children 2-14 years old Incidence Incidence decreases after 9 years of age. Prevalence Twice as common in males Risk Factors Most are isolated cases. Juvenile rheumatoid […]

Paget Disease

Basics Description First described by Sir James Paget in 1877 , Paget disease (osteitis deformans) is a bone disorder commonly seen in the geriatric population. As implied by the name osteitis deformans, the involved bone may be severely deformed and enlarged, features that suggest an inflammatory origin. A chronic and slowly progressive disease of […]

Osteomyelitis

Basics Description Osteomyelitis is inflammation or infection of bone. Classification is most commonly based on the timing of onset: Acute: Most often from hematogenous spread: The most common organism in neonates is Staphylococcus aureus, followed by Streptococcus or Gram-negative organisms. In older infants and children, it usually is S. aureus. Subacute: Accounts for 1/3 […]

Osteochondroma

Basics Description An osteochondroma is a common developmental abnormality of the peripheral growth plate that results in a lobulated outgrowth of cartilage and bone from the metaphysis. Appears as a cartilage-capped bony projection from the metaphysis of long bones Can occur in any bone that develops from enchondral ossification Most commonly occurs in: Long […]

Metastatic Bone Disease

Basics Description The most common cause of destructive bone lesions in the adult The amount of bone destruction varies from small amounts to complete fracture. Bone metastases occur less commonly in children than in adults. Virtually any malignancy may metastasize to bone. With some cancers (such as breast and prostate cancer), virtually all patients […]