An Unusual Case of Aneurysmal Bone Cyst of Proximal Phalanx in a 2 Year Old Child

Anoop C Dhamangaonkar1, Ashwin Sathe1, Subhashis Banerjee1

  • 1Department of Orthopaedics, Lokmanya Tilak Municipal Medical College and Lokmanya Tilak Municipal General Hospital, Sion, Mumbai, India.

Insights

Aneurysmal bone cysts (ABCs) in children's hands are rare. Surgical curettage and bone grafting effectively treated a proximal phalanx ABC, showing excellent outcomes with no recurrence after five years.

Area of Science:

  • Orthopedic Surgery
  • Pediatric Oncology
  • Skeletal Radiology

Background:

  • Aneurysmal bone cysts (ABCs) are rare, rapidly growing, destructive benign bone tumors.
  • ABCs in the tubular bones of the hand, particularly in the pediatric population, are exceptionally uncommon.
  • Optimal treatment strategies for aneurysmal bone cysts remain a subject of debate in medical literature.

Observation:

  • A case involving a 2-year-old child with an aneurysmal bone cyst in the proximal phalanx of the middle finger was treated at a tertiary care hospital.
  • Diagnostic confirmation involved pre-operative Magnetic Resonance Imaging (MRI), Fine Needle Aspiration Cytology (FNAC), and post-operative histopathology.
  • The treatment consisted of surgical curettage of the lesion followed by autologous bone grafting.

Findings:

  • The patient underwent a 4-week immobilization period with a short below-elbow slab, followed by a structured physiotherapy regimen.
  • Post-treatment follow-up revealed excellent radiological and functional recovery.
  • Crucially, there was no evidence of recurrence five years after the initial treatment.

Implications:

  • This case highlights the efficacy of curettage and autologous bone grafting as a successful treatment modality for pediatric aneurysmal bone cysts in the hand.
  • The findings suggest that this surgical approach can lead to long-term, favorable outcomes, including functional restoration and absence of recurrence.
  • Further research into standardized treatment protocols for such rare pediatric bone tumors is warranted to address existing controversies.

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