title: Macrophage activation syndrome presenting with pericardial effusion, hyponatremia and renal involvement.
abstract: BACKGROUND
  Macrophage activation syndrome is a rare and life threatening complication of childhood rheumatic disorders.
  
  
  METHODS
  6-year-old male child with macrophage activation syndrome complicating systemic onset juvenile idiopathic arthritis.
  
  
  METHODS
  He developed pericardial effusion, hyponatremia and deranged renal function.
  
  
  RESULTS
  Improvement on intravenous cortico steroids.
  
  
  CONCLUSIONS
  High index of suspicion can lead to earlier diagnosis of macrophage activation syndrome.
authors: Departments of Pediatrics and *Medicine, SP Medical College, Bikaner, Rajasthan, India. Correspondence to: Dr Shyama Choudhary, 77, PG Hostel, PBM Hospital, Bikaner 334001 (Rajasthan), India. shyama04dr.snmc@gmail.com.
authors: Shyama
authors: S
authors: Choudhary
authors: Pramod K
authors: PK
authors: Berwal
authors: Satyendra
authors: S
authors: Khichar
authors: Parasmal
authors: P
authors: Baid
mesh_terms: D002648:Child; D006801:Humans; D007010:Hyponatremia; D007674:Kidney Diseases; D055501:Macrophage Activation Syndrome; D008297:Male; D010490:Pericardial Effusion