• Yael Shachor-Meyouhas, Hannah Sprecher, and Imad Kassis.
• Pediatric infectious Diseases Unit, Meyer Children's Hospital, Haifa, Israel. y_shahor@rambam.health.gov.il
• Harefuah. 2010 Aug 1;149(8):486-9, 552.

AbstractInvasive disease caused by Streptococcus pneumoniae (SPn) is common among young children. Severe sepsis can be seen among those with primary or secondary immunodeficiency states. The absence of a spleen is a well-known risk factor for severe and overwhelming pneumococcal sepsis, as well as other encapsulated bacteria (e.g. Haemophilus influenzae type b (Hib), or Neisseria meningitidis). The most common cause of asplenia is surgical removal of the spleen (after trauma or as a treatment for various hematological conditions). Dysfunction of the spleen can also be seen in sickle cell disease, with high risk of invasive bacterial diseases. Primary congenital asplenia is rare. Congenital asplenia can be a part of Ivemark syndrome which is accompanied by other malformations. Isolated congenital asplenia is exceedingly rare. These patients can present with severe sepsis, meningitis or even sudden death. Overall, 31 cases have been reported, among them 17 were familial and the rest sporadic. The genetic bases for this rare life-threatening malformation are not known. The authors describe a one year old patient, presented with severe pneumococcal sepsis and multisystem organ failure. Isolated congenital asplenia was demonstrated. The child recovered and is being treated according to the recommendations for adults with asplenia.

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