title: Cysts of branchial arch origin in the thymus of the Beagle.
mesh_terms: D000818:Animals; D001935:Branchioma / Q000473:pathology / Q000662:veterinary*; D004283:Dog Diseases; D004285:Dogs; D006651:Histocytochemistry; D009077:Mucins / Q000032:analysis; D013953:Thymus Neoplasms / Q000473:pathology / Q000662:veterinary*
chemical_list: D009077:Mucins