Imaging in Pediatrics

Osteosarcoma

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Ewing Sarcoma

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Rhabdomyosarcoma

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Venous Malformation

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Soft Tissue Abscess

KEY FACTS Terminology Abscess: Walled-off liquefied collection of necrotic tissue, inflammatory cells, & bacteria Imaging Most commonly affects single site: Typical lymph node location vs. other subcutaneous or intramuscular focus Septic emboli can cause multifocal collections Ultrasound: Excellent for detecting superficial…

Osteomyelitis

KEY FACTS Imaging Long bone metaphyses 70% (femur > tibia > humerus), short bones 6%, pelvis 5%, spine 2% Metaphysis or equivalent > epiphysis, diaphysis Multifocal in 10% overall but 22% in neonates Absence of radiographic bone findings does not…

Septic Arthritis

KEY FACTS Terminology Septic arthritis: Microbial (typically bacterial) invasion of joint leading to inflammation & purulence Imaging US: Highly sensitive for fluid distending joint capsule Complexity & volume do not predict/exclude infection MR: Nonspecific joint fluid with synovial thickening Findings…

Transient Synovitis

KEY FACTS Terminology Idiopathic self-limited inflammation of pediatric hip Synonyms: Toxic synovitis You’re Reading a Preview Become a Clinical Tree membership for Full access and enjoy Unlimited articles Become membership If you are a member. Log in here

Triplane Fracture

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