Benign Triton Tumor

**Semantic type:** Disease or Syndrome

**Definition:** A very rare intraneural mass in a large nerve characterized by the interposition of mature skeletal muscle fibers and nerve fibers.

**Synonyms:** - Ectomesenchymal Hamartoma - NMC - Nerve Rhabdomyoma - Neuromuscular Choristoma - Neuromuscular Hamartoma - Rhabdomyoma/Choristoma