[A case of proliferative sparganosis associated with PIE syndrome and pulmonary embolism].

A 48-year-old man was admitted because of ischialgia. The CT scanning revealed tumors in the right pelvic cavity and the gluteal muscle. The bodies of Sparganum proliferum and granulation tissues were revealed by the tumor biopsy. In this hospital course, the chest roentgenogram revealed patchy infiltrative shadows in both lungs and left pleural effusion while chest CT scanning revealed multiple nodular shadows. Eosinophils increased in the peripheral blood and transbronchial lung biopsy (TBLB) showed non-destructive vasculitis with eosinophilic infiltration. The pulmonary lesion was diagnosed as intrapulmonary migration of Sparganum proliferum and PIE syndrome caused by this worm. Thiabendazole and prednisolone were administrated, but he died of pulmonary embolism.