Related Experiment Video
Updated: Mar 3, 2026
06:40
Screening of Axonal Degeneration in Carpal Tunnel Syndrome Using Ultrasonography and Nerve Conduction Studies
Published on: January 11, 2019
12.4K
Diagnosing and discriminating between primary and secondary aneurysmal bone cysts
Hiromi Sasaki1, Satoshi Nagano1, Hirofumi Shimada1
1Department of Orthopedic Surgery, Graduate School of Medical and Dental Sciences, Kagoshima University, Kagoshima 890-8520, Japan.
Oncology Letters
|April 30, 2017
Summary
Aneurysmal bone cysts (ABCs) are rare benign bone lesions. This study analyzed 22 cases, finding an 18% recurrence rate for primary ABCs, often due to incomplete removal, and highlighting diagnostic features for primary versus secondary ABCs.
Area of Science:
- Orthopedic Surgery
- Oncology
- Pathology
Background:
- Aneurysmal bone cysts (ABCs) are rare, benign bone lesions characterized by cystic formations and aggressive bone destruction.
- The exact pathogenesis of ABCs remains unclear, necessitating further research into their development and behavior.
Purpose of the Study:
- To retrospectively analyze a series of primary and secondary aneurysmal bone cysts.
- To investigate the clinical features, treatment outcomes, and recurrence rates of ABCs.
- To identify distinguishing characteristics between primary and secondary ABCs and recommend diagnostic approaches.
Main Methods:
- Retrospective analysis of 22 primary and secondary ABC cases treated between 2001 and 2015.
- Review of patient data, including age at diagnosis, tumor location, treatment modalities, and recurrence.
- Evaluation of imaging findings (MRI) and histopathological features.
Main Results:
- The average age at diagnosis for primary ABC was 17.9 years.
- Intralesional curettage and bone grafting were common treatments for primary ABC.
- A local recurrence rate of 18% was observed for primary ABCs, attributed to insufficient curettage.
- Secondary ABCs were associated with preceding benign bone tumors like fibrous dysplasia and giant cell tumors.
- Distinguishing primary from secondary ABCs was possible based on age and location, though ambiguous cases required biopsy.
Conclusions:
- Incomplete curettage is a significant factor in the local recurrence of primary ABCs.
- Adjuvant therapies might help prevent recurrence in specific cases.
- Differentiating primary and secondary ABCs is crucial, with biopsy recommended for ambiguous presentations to rule out aggressive tumors.
