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Asymmetrical muscle hypertrophy simulating a localised soft tissue mass

J Almansoor1, A E Boothroyd, H Carty

  • 1Department of Radiology, Royal Liverpool Children's Hospital, Alder Hey, England.

Journal of Pediatric Orthopedics. Part B
|March 3, 1998
PubMed
Summary

Radiological imaging revealed muscle hypertrophy, not a discrete soft tissue mass, in three children. This condition, while sometimes linked to exercise, remains unexplained in two of the cases.

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Area of Science:

  • Pediatric Radiology
  • Musculoskeletal Imaging
  • Pediatric Pathology

Background:

  • Soft tissue masses in children often require radiological investigation to differentiate between neoplastic and non-neoplastic etiologies.
  • Accurate diagnosis is crucial for appropriate management and to avoid unnecessary interventions.

Observation:

  • Three pediatric patients presented with clinically suspected soft tissue masses in the right axilla and overlying the right scapula.
  • Cross-sectional imaging, including MRI and CT, was utilized for detailed anatomical assessment.

Findings:

  • Imaging demonstrated localized muscle hypertrophy rather than a distinct soft tissue mass in all three children.
  • Histological examination confirmed the radiological findings of muscle hypertrophy.
  • While exercise can cause muscle hypertrophy, only one child had a history of excessive gymnastic activity.

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Implications:

  • This case series highlights the importance of considering muscle hypertrophy as a differential diagnosis for soft tissue masses in pediatric patients.
  • The etiology of localized muscle hypertrophy remains unclear in some pediatric cases, warranting further investigation.
  • Radiologists and clinicians should be aware of this entity to prevent misdiagnosis and ensure appropriate patient care.