Overview
multicenter retrospective and prospective study in patients with high-grade osteosarcoma
Description
This is a multicenter retrospective and prospective study that will analyze all cases with of diagnosis of local relapse in high-grade osteosarcoma from 01 January 1980 and all new cases referring to each participant site.
Eligibility
Inclusion Criteria:
- Patients who experienced LR as first event of recurrence after treatment for localized high-grade osteosarcoma of bone, including cases with synchronous lung metastases
- Adequate patient compliance to follow-up visits
- Written informed consent prior to any study-specific analysis and/or data collection
- No age limits
Exclusion Criteria:
- Cases of LR demonstrated after > 3 months after metastatic disease
- Impossibility to ensure adequate compliance