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Zorluk: OrtaPediatric Musculoskeletal Disorders

Match the following pediatric clinical vignettes with the most likely diagnosis.

  • An 8-year-old boy presents with a 4-week history of worsening left hip discomfort and a limp. He is afebrile with normal inflammatory markers. Radiographs show sclerosis and fragmentation of the proximal femoral epiphysis.Legg-Calvé-Perthes disease
  • A 4-year-old girl is brought in because she refuses to walk. Her temperature is 39.0°C (102.2°F). Laboratory evaluation reveals a WBC count of 16,000/mm³ and an ESR of 55 mm/hr.Septic arthritis
  • A 12-year-old boy with a BMI at the 98th percentile complains of dull, intermittent left thigh and knee pain for the past month. On examination, the left hip obligately externally rotates during passive flexion.Slipped capital femoral epiphysis
  • A 6-year-old boy developed a right-sided limp yesterday. He had a mild viral upper respiratory infection a week ago. He is afebrile, and his vital signs and inflammatory markers are normal.Transient synovitis

Cevap

Vignette 1 matches with Legg-Calvé-Perthes disease. Vignette 2 matches with Septic arthritis. Vignette 3 matches with Slipped capital femoral epiphysis. Vignette 4 matches with Transient synovitis.
Each vignette represents a distinct demographic and clinical archetype for pediatric hip pathology: LCPD is seen in school-aged children with subacute limp and radiographic necrosis; Septic arthritis presents acutely with fever and high inflammatory markers; SCFE affects obese adolescents with altered hip mechanics and referred pain; Transient synovitis is a post-viral, benign condition without systemic toxicity.

Adım Adım Çözüm

1
Analyze the 8-year-old with insidious limp and epiphyseal fragmentation.
Identify Legg-Calvé-Perthes disease due to avascular necrosis of the femoral head.
Age group (4-10 years) and radiographic signs of osteonecrosis are pathognomonic.
2
Evaluate the 4-year-old with acute non-weight bearing, high fever, and elevated ESR/WBC.
Identify Septic arthritis based on Kocher criteria.
Presence of fever, inability to bear weight, ESR > 40, and WBC > 12,000 indicates a high probability of a septic joint.
3
Examine the obese 12-year-old with referred knee pain and obligate external rotation.
Identify Slipped capital femoral epiphysis.
Adolescent age, obesity, referred pain, and the specific physical exam finding (external rotation with flexion) are classic for SCFE.
4
Assess the 6-year-old with a post-viral limp and normal vitals/labs.
Identify Transient synovitis.
It is a benign, self-limited condition following a viral infection, presenting without high fever or severe systemic signs.

Anahtar Kavram

Differentiating common causes of pediatric limp based on age, chronicity, associated symptoms, and inflammatory markers.
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