title: Chronic hypoxemia in a child: thinking outside the box.
abstract: BACKGROUND
  Chronic hypoxemia is generally attributed to primary cardiac or pulmonary entities.
  
  
  METHODS
  A 9-year-old boy presenting with cyanosis, clubbing and hypoxemia, without icterus or hepatosplenomegaly. Cardiovascular and respiratory system examinations were normal.
  
  
  RESULTS
  He was diagnosed as type IB Abernethy malformation, a rare cause of hepatopulmonary syndrome.
  
  
  CONCLUSIONS
  Pediatricians should consider hepatopulmonary syndrome in the differential diagnosis of chronic hypoxemia, even in the absence of jaundice or hepatosplenomegaly.
authors.affiliation: Departments of Pediatrics and *Radiodiagnosis, JIPMER, Pondicherry, India. Correspondence to: Dr Sriram Krishnamurthy, Associate Professor, Department of Pediatrics, JIPMER, Pondicherry 605 006, India. drsriramk@yahoo.com.
authors.forename: Barath
authors.initials: B
authors.lastname: Jagadisan
authors.forename: Sriram
authors.initials: S
authors.lastname: Krishnamurthy
authors.forename: Renitha
authors.initials: R
authors.lastname: Raghavan
authors.forename: S Deepak
authors.initials: SD
authors.lastname: Barathi
mesh_terms: D001165:Arteriovenous Malformations; D002648:Child; D003490:Cyanosis; D020065:Hepatopulmonary Syndrome; D006801:Humans; D000860:Hypoxia; D008297:Male