Head and Neck GLI1-Altered Soft Tissue Tumor

**Semantic type:** Neoplastic Process

**Definition:** A GLI1-altered soft tissue tumor that arises from the head and neck. The majority of cases arise from the tongue. Less frequently involved sites include the submandibular gland and soft tissue of neck.

**Synonyms:** - Head and Neck Epithelioid Neoplasm with GLI1 Rearrangement - Head and Neck GAESTT - Head and Neck GLI1-Altered Epithelioid Soft Tissue Tumor