title: Prenatal diagnosis of Pompe disease by electron microscopy.
abstract: BACKGROUND
  Pompe disease is one of the lysosomal storage disorders caused by alpha-glucosidase deficiency. The disease is characterized by accumulation of glycogen in the lysosome. The accumulation has unique ultrastructural features, which enable a prenatal diagnosis possible by electron microscopy.
  
  
  METHODS
  A prenatal diagnosis of Pompe disease by electron microscopic study of chorionic villus biopsies is described in a fetus of a mother whose previous child had died of the disease.
  
  
  RESULTS
  Electron microscopy revealed fibrocytes with typical vacuoles filled with glycogen. A prenatal diagnosis of Pompe disease was made and subsequently confirmed by the autopsy study of the abortus.
  
  
  CONCLUSIONS
  We report the usefulness of electron microscopy for prenatal diagnosis in the first trimester of Pompe disease.
authors.affiliation: Department of Obstetrics and Gynecology, Faculty of Medicine, Chulalongkorn University, 10330 Pathumwan, Bangkok, Thailand. vorapong.p@chula.ac.th
authors.forename: Vorapong
authors.initials: V
authors.lastname: Phupong
authors.forename: Shanop
authors.initials: S
authors.lastname: Shuangshoti
authors.forename: Piriya
authors.initials: P
authors.lastname: Sutthiruangwong
authors.forename: Supang
authors.initials: S
authors.lastname: Maneesri
authors.forename: Penpan
authors.initials: P
authors.lastname: Nuayboonma
authors.forename: Vorasuk
authors.initials: V
authors.lastname: Shotelersuk
mesh_terms: D000028:Abortion, Induced; D000328:Adult; D002824:Chorionic Villi / Q000648:ultrastructure*; D015193:Chorionic Villi Sampling; D005260:Female; D006009:Glycogen Storage Disease Type II / Q000175:diagnosis* / Q000378:metabolism; D006801:Humans; D008297:Male; D008854:Microscopy, Electron / Q000379:methods*; D011247:Pregnancy