Submandibular hydatid cyst fistulized into the oral cavity.

Unlabelled: Hydatid cysts of the head and neck are rare, even in regions where echinococcal infestation is endemic. Although complications, like cyst rupture and infection, may occur, an external fistula is extremely rare. This study examined a case of hydatid cyst that had fistulized in the right submandibular region of the oral cavity, which eroded the mandible.