[Pseudo-ascaris in ultrasonography of the epigastrium].

A sonographically demonstrated vermicular structure in the region of the gall bladder was suspected to be an ascaris, which is to find in the biliary system occasionally. However under cholecystectomy there was not to detect a worm, only a stone in the cystic duct. In accordance to anamnesis we think it being the caudal part of a ventriculo-peritoneal drain implanted for hydrocephalus therapy.