Article Text

Unusual presentation of more common disease/injury
Atypical malignant round cell tumour of the femur
  1. Natasha Gupta1,
  2. Asis Karak2,
  3. Awadhesh Tiwari1
  1. 1
    Department of Radiology, B.P. Koirala Institute of Health Sciences, Dharan, Nepal
  2. 2
    Department of Pathology, B.P. Koirala Institute of Health Sciences, Dharan, Nepal
  1. drnatashagupta{at}


We report an atypical case of malignant round cell tumour in a 25-year-old man who presented with pain in the left hip of insidious onset and long duration of about 1½ years. Radiologically, the tumour was meta-epiphyseal in location with sparing of the diaphysis and showed a defined, narrow zone of transition. These appearances are contradictory to the well documented classical features of malignant round cell tumours, which usually present with a short history, are meta-diaphyseal in location, and appear ill-defined with a wide zone of transition due to infiltration of the adjacent bone.

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  • Competing interests: none.

  • Patient consent: Patient/guardian consent was obtained for publication