title: Acute abdominal pain due to Macracanthorhynchus hirudinaceus infection: a case report.
mesh_terms: D000005:Abdomen; D000049:Acanthocephala / Q000302:isolation & purification; D002648:Child; D006373:Helminthiasis / Q000150:complications / Q000469:parasitology*; D006801:Humans; D007082:Ileum / Q000469:parasitology; D008297:Male; D010146:Pain / Q000209:etiology; D013785:Thailand