Related Experiment Videos
Prognostic relevance of rosette-like features in osteosarcoma
K Okada1, T Hasegawa, R Yokoyama
1Department of Orthopaedic Surgery, Akita University School of Medicine, Akita 010-8543, Japan. cshokada@med.akita-u.ac.jp
Journal of Clinical Pathology
|November 6, 2003
Summary
Rosette-like features in osteosarcoma are a significant indicator of poor prognosis. These easily identifiable histological features, along with large tumor size and poor chemotherapy response, predict worse outcomes in patients.
Area of Science:
- Oncology
- Pathology
Background:
- Osteosarcoma is a primary bone malignancy with variable prognosis.
- Identifying reliable prognostic factors is crucial for patient management.
Purpose of the Study:
- To investigate the prognostic significance of rosette-like features in osteosarcoma.
- To correlate these features with clinicopathological and immunohistochemical variables.
Main Methods:
- Analysis of 131 patients with non-metastatic, high-grade conventional osteosarcoma.
- Evaluation of clinicopathological and immunohistochemical data, focusing on rosette-like features.
Main Results:
- Rosette-like features were found in 14% of cases and associated with specific subtypes and cellular characteristics.
- Multivariate analysis identified rosette-like features (RR 3.8), poor chemotherapy effect (RR 2.9), and large tumor size (RR 2.8) as adverse prognostic factors.
Conclusions:
- Rosette-like features are easily identifiable on routine histology.
- These features hold significant prognostic value, comparable to established factors like tumor size and chemotherapy response in osteosarcoma.