We report an imported case of myositis caused by a rare parasite, Haycocknema perplexum, in Australia in a 37-year-old man who had progressive facial, axial, and limb weakness, dysphagia, dysphonia, increased levels of creatine kinase and hepatic aminotransferases, and peripheral eosinophilia for 8 years. He was given extended, high-dose albendazole.
Keywords: Haycocknema perplexum; United States; haycocknematosis; helminths; imported infection; myositis; nematode infections; nematodes; parasites; polymyositis; soft tissue infections; zoonoses.