BCOR ITD Sarcoma

**Semantic type:** Neoplastic Process

**Definition:** A group of rare primitive round cell sarcomas characterized by the presence of BCOR internal tandem duplication. This genetic alteration has been described in infantile undifferentiated round cell sarcomas and primitive myxoid mesenchymal tumors of infancy.

**Synonyms:** - BCOR-ITD Sarcoma - Round Cell Sarcoma with BCOR Internal Tandem Duplication - Sarcoma with BCOR Internal Tandem Duplication