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. The disease is extrarenal rhabdoid tumor (MONDO_0044916). Also known as: malignant extrarenal rhabdoid neoplasm, rhabdoid tumor of soft tissue, rhabdoid tumour of soft tissue.