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Chondrosarcoma. Increasing grade of malignancy in local recurrence
Acta Pathologica, Microbiologica, Et Immunologica Scandinavica. Section A, Pathology
|March 1, 1986
Summary
Radical treatment for chondrosarcoma, including low-grade tumors, is recommended due to high recurrence rates. Recurrences can increase malignancy grade, necessitating aggressive initial surgical intervention for better outcomes.
Area of Science:
- Orthopedic Oncology
- Surgical Pathology
Background:
- Chondrosarcoma is a malignant cartilage tumor with varying grades.
- Understanding recurrence patterns and grade evolution is crucial for treatment planning.
Purpose of the Study:
- To analyze the recurrence rate and histological grade changes in chondrosarcomas.
- To evaluate the impact of initial treatment on chondrosarcoma outcomes.
Main Methods:
- Retrospective analysis of 44 chondrosarcoma cases over 22 years.
- Histological grading (I-III) based on cellularity, nuclear atypia, and mitotic rate (Evans classification).
- Assessment of local recurrence and changes in tumor grade upon recurrence.
Main Results:
- 18 out of 44 patients experienced local recurrence, with 8 having multiple recurrences.
- 12 patients showed an increased malignancy grade in recurrent tumors.
- Secondary chondrosarcomas arose in 5 cases from pre-existing bone conditions.
Conclusions:
- Chondrosarcoma recurrence is common and can lead to higher malignancy grades.
- Radical initial treatment, such as en bloc resection or amputation, is advised even for low-grade chondrosarcomas.
- Aggressive initial management may improve long-term prognosis and prevent disease progression.