Aneurysmal Bone Cyst

  • Liliana G. Olvi
  • Gustavo M. Lembo
  • Osvaldo Velan
  • Eduardo Santini-Araujo

Abstract

Aneurysmal bone cyst is an intramedullary eccentric metaphyseal and rapid expansible benign lytic lesion with multiloculated blood-filled cystic cavities, lined by membranes of different thickness and composed of spindle cells, osteoid trabeculae, and osteoclastic-type giant cells. Primary ABC: When ABC arises “de novo” in bone − 70 % of cases. In these cases, a definite preexisting lesion cannot be demonstrated. Secondary ABC: Areas similar to primary ABC are found in various benign and malignant conditions. Male/female ratio is equal. The second followed by the first decade of life accounts for 80 % of cases. Roentgenographically, it is an area of lucency situated eccentrically in the medullary cavity in the metaphysis of a long bone. MRI confirms the entirely cystic nature, the internal septations, and its fluid-fluid levels. Treatment includes excision or curettage and bone grafting.

Keywords

Aneurysmal bone cyst Pseudotumor Genetics Secondary aneurysmal bone cyst 

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Copyright information

© Springer-Verlag London 2015

Authors and Affiliations

  • Liliana G. Olvi
    • 1
  • Gustavo M. Lembo
    • 2
  • Osvaldo Velan
    • 3
  • Eduardo Santini-Araujo
    • 4
    • 5
    • 1
  1. 1.Laboratory of Orthopaedic PathologyBuenos AiresArgentina
  2. 2.Department of PathologyCentenary Hospital Rosario Santa Fe ArgentinaRosario, Santa FeArgentina
  3. 3.Department of RadiologyItalian Hospital of Buenos AiresBuenos AiresArgentina
  4. 4.Department of Pathology, School of Medicine and School of DentistryUniversity of Buenos AiresBuenos AiresArgentina
  5. 5.Central Army HospitalBuenos AiresArgentina

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