Overview
Experimental study with biological material : case series review of clinical and histological data
Description
This is a multicenter retrospective and prospective study that will analyze all cases with a diagnosis of Undifferentiated round cell sarcomas from 01 January 1983 and all new cases referring to each participant site.
Eligibility
Inclusion Criteria:
- Patients with undifferentiated round cell sarcomas treated from 01 January 1983 and all new patients will be included.
- Clinical and outcome information available.
- Histological slides/formalin-fixed paraffin-embedded tissue tumor blocks from archive available to perform the histology analysis/frozen tissue representative of the tumor available.
Exclusion Criteria:
- Diagnosis different from undifferentiated round cell sarcomas
- Patient with no clinical or outcome information available