ABSTRACT
We describe a 10-day-old male presenting with drop foot and immobility in his right
leg; no abnormality in physical examination had been found upon delivery or discharge.
Magnetic resonance imaging showed a pelvic mass with an extension to the great sciatic
foramen. Fine-needle aspiration biopsy revealed congenital infantile fibrosarcoma.
He was started on vincristine, actinomycin-D, cyclophosphamide chemotherapy. However,
he died soon after the second cycle due to veno-occlusive disease of the liver. Differential
diagnosis of drop foot and immobility in lower extremity must include infiltrating
neoplasms in pelvis.
KEYWORDS
Infantile fibrosarcoma - pelvis - drop foot - immobility - leg
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Serhan KüpeliM.D.
Institute of Oncology, Department of Pediatric Oncology, Hacettepe University
Ankara, Turkey
Email: serkupeli@yahoo.com
