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International Orthopaedics

, Volume 33, Issue 2, pp 489–492 | Cite as

Stress fractures presenting as tumours: a retrospective analysis of 22 cases

  • Andreas FottnerEmail author
  • Andrea Baur-Melnyk
  • Christof Birkenmaier
  • Volkmar Jansson
  • Hans-Roland Dürr
Original Paper

Abstract

Frequently, the imaging features of stress fractures may be misinterpreted as tumour-like lesions. The aim of this study was to analyse the quality of different examinations in detecting stress fractures mimicking tumour-like lesions in magnetic resonance imaging (MRI). We evaluated 22 cases which were referred to our department with the suspected diagnosis of bone tumours turning out to be stress fractures. Whenever the MRI did not lead to a diagnosis after a second review, computed tomography (CT) scans and, if still required, additional examinations were performed until the fracture was detected. A stress fracture was diagnosed in 15 cases after the additional CT scan, in five cases with the review of the MRI and in two cases with a combination of several examinations. Especially in stress fractures of the tibia and the femur, CT scanning was essential for making a diagnosis by detecting the fracture line. Bone scans and biopsies, in contrast, were not helpful in making a correct diagnosis.

Keywords

Magnetic Resonance Imaging Single Photon Emission Compute Tomography Stress Fracture Plain Radiograph Bone Scintigraphy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Résumé

de façon fréquente les images de fractures de fatigue peuvent être interprétées comme des images pseudo tumorales. Pour cette étude nous avons analysé ce type de lésions à l’aide de l’IRM. Nous avons suivi 22 cas, de tumeur osseuse faisant penser à des fractures de fatigue. Chaque fois, l’IRM ne nous a pas permis de faire le diagnostic après un second examen. Le scanner a été également nécessaire ainsi que d’autres examens pour affirmer le diagnostic de fractures. une fracture de fatigue a été diagnostiquée dans 15 cas après un scanner additionnel, dans 5 cas après avoir revu l’IRM et dans 2 cas avec une combinaison de plusieurs examens. pour une fracture de fatigue du tibia et du fémur, le scanner est un examen essentiel par contre la biopsie n’apporte pas d’aide au diagnostic.

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Copyright information

© Springer-Verlag 2007

Authors and Affiliations

  • Andreas Fottner
    • 1
    Email author
  • Andrea Baur-Melnyk
    • 2
  • Christof Birkenmaier
    • 1
  • Volkmar Jansson
    • 1
  • Hans-Roland Dürr
    • 1
  1. 1.OrthopedicsKlinikum GroßhadernMunichGermany
  2. 2.RadiologyKlinikum GroßhadernMunichGermany

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