Hydatid cysts in the right temporalis muscle: An exceptional clinical scenario.

Hydatid diseases is a parasitic infestation of human and herbivorous animals caused by a cestode, Echinococcus granulosus, which resides in the intestine of definitive hosts like dogs and some wild carnivores like foxes. Liver and lung are commonly involved organs and involvement of muscles and bones is very unusual. Hydatid cyst of the temporalis muscle is extremely rare, even in the countries where echinococcal infestation is endemic. We report a case of 23-year-old female patient with a cystic swelling in the right temporalis muscle which turned out to be hydatid cysts. Surgical excision formed the main modality of treatment.