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Bizarre Parosteal Osteochondromatous Proliferation causing angular deformities: A Case Report.

Mohamed Musheer Hussain1, K Salauddin Arif1

  • 1Department of Orthopaedics, Yenepoya Medical College, Mangalore, Karnataka, India -575018.

Journal of Orthopaedic Case Reports
|June 15, 2016
PubMed
Summary
This summary is machine-generated.

Bizarre Parosteal Osteochondromatous Proliferation (Nora Lesions) can cause angular deformities in children. Early surgical intervention is crucial for managing this rare condition and preventing digit deformities.

Keywords:
BPOPBizarre parosteal osteochondromatous proliferationNora LesionOsteochondroma

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Area of Science:

  • Orthopedic Surgery
  • Pediatric Oncology
  • Skeletal Dysplasias

Background:

  • Bizarre Parosteal Osteochondromatous Proliferation (Nora Lesions) is a rare bone tumor with fewer than 150 reported cases.
  • Nora Lesions can be misdiagnosed as osteochondroma or chondrosarcoma, leading to inappropriate management.
  • This condition typically affects individuals in their second or third decade of life.

Observation:

  • A 3-year-old boy presented with multiple bony swellings on his hands and feet, causing angular deformities.
  • The patient exhibited a valgus deformity of the right middle finger with an ulnar bony swelling, progressing rapidly over three months.
  • Physical examination revealed hard, tender bony swellings causing digital angular deformities.

Findings:

  • Excision biopsy confirmed the diagnosis of Bizarre Parosteal Osteochondromatous Proliferation.
  • Surgical intervention for Nora Lesions is often warranted.
  • One-year follow-up demonstrated no progression of the angular deformity in the operated digits.

Implications:

  • Bizarre Parosteal Osteochondromatous Proliferation can rarely occur in children, necessitating early identification and treatment to prevent deformities.
  • Prompt diagnosis and surgical management are essential for optimal outcomes in pediatric cases of Nora Lesions.
  • Understanding the varied presentation of Nora Lesions is critical for accurate diagnosis and effective treatment planning.