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[Calcaneal cyst: a classical simple bone cyst?].

K Huch1, M Werner, W Puhl

  • 1Orthopädische Klinik mit Querschnittgelähmtenzentrum der Universität Ulm/RKU, Ulm. klaus.huch@rku.de

Zeitschrift Fur Orthopadie Und Ihre Grenzgebiete
|October 9, 2004
PubMed
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Histological analysis of calcaneal cysts revealed they mimic intraosseous lipomas radiologically. Asymptomatic cases of calcaneal cysts or lipomas should be managed non-operatively due to low fracture risk.

Area of Science:

  • Orthopedic Surgery
  • Radiology
  • Histopathology

Background:

  • Differentiating calcaneal solitary bone cysts from intraosseous lipomas is challenging.
  • Radiological imaging often suggests intraosseous lipoma, but histology typically confirms a solitary bone cyst.
  • This study examines 12 cases of calcaneal cysts.

Purpose of the Study:

  • To investigate the histological characteristics of calcaneal cysts.
  • To compare radiological findings with histological diagnoses.
  • To inform treatment strategies for calcaneal bone lesions.

Main Methods:

  • Review of 12 surgically treated calcaneal cysts between 1993 and 2001.
  • Surgical interventions included curettage and various bone grafting techniques.

Related Experiment Videos

  • Histopathological examination of all resected cyst tissues.

    • Main Results:

    • None of the 12 cases showed histological features consistent with intraosseous lipoma.
    • All specimens exhibited microscopic characteristics typical of solitary bone cysts found in long bones.
    • No pathological fractures were observed in any of the patients.

    Conclusions:

    • Histologically confirmed calcaneal cysts can present with radiological features suggestive of intraosseous lipoma.
    • The nature of previously reported calcaneal lipomas remains uncertain, possibly representing cystic fatty degeneration.
    • Non-operative management is recommended for asymptomatic calcaneal cysts or lipomas due to a low incidence of pathological fractures.