Multiple hereditary exostoses

Case contributed by Dr Craig Hacking


Atraumatic knee pain

Patient Data

Age: 50-55 years
Gender: Male

Alignment is normal. No fracture identified. No joint effusion. Multiple osteochondromas in keeping with multiple hereditary exostoses. Fusion of the proximal tibiofibular joint. No definite signs of sarcomatous transformation however MRI is indicated given the symptoms of pain after skeletal maturation.

Case Discussion

The features of an osteochondroma that are associated with malignant sarcomatous transformation are GLAD PAST 1:

  • Growth after skeletal maturity
  • Lucency (new)
  • Additional scintigraphic activity
  • Destruction (cortical)
  • Pain after puberty
  • And
  • Soft tissue mass
  • Thickened cartilage cap greater than 1.5cm
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Case information

rID: 37915
Published: 26th Jun 2015
Last edited: 26th Aug 2017
Inclusion in quiz mode: Included

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