Extrarenal Rhabdoid Tumor

**Semantic type:** Neoplastic Process

**Definition:** A rhabdoid tumor which arises in the soft tissues. It occurs in infants and children and may be associated with loss of chromosome 22. It is characterized by the presence of cells with a large eccentric nucleus, prominent nucleolus, and abundant cytoplasm.

**Synonyms:** - Malignant Extrarenal Rhabdoid Neoplasm - Rhabdoid Tumor of Soft Tissue