A case of Pentastomum denticulatum infection in goats was described. In August 2007, in a herd of 30 goats, in the region of Rousse (North Bulgaria), there were observed non-specific clinical signs: reduced appetite, depression, emaciation, lying down, and decreased milk secretion. Despite antibiotic therapy 3 of the goats died. A necropsy was performed and small, yellow-white oval cysts with a white parasite inside were established in liver, lungs and mesenteric lymph nodes. The parasites (total number - 30) were examined microscopically and determined as Pentastomum denticulatum - larval stage of Linguatula serrata.