What are the signs and symptoms of infection or leakage of hydatid cysts?

Updated: May 07, 2019
  • Author: Imad S Dandan, MD; Chief Editor: BS Anand, MD  more...
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Answer

Secondary complications may occur as a result of infection of the cyst or leakage of the cyst. Note the following:

  • Minor leaks lead to increased pain and a mild allergic reaction characterized by flushing and urticaria. Major rupture leads to a full-blown anaphylactic reaction, which is fatal if not treated promptly. A rupture into the biliary tree can lead to obstruction by the daughter cysts, producing cholangitis. Rupture into the bronchi can lead to expectoration of cyst fluid.

  • Infection of the cyst can occur either as a primary infection or as a secondary infection following an episode of a leak into the biliary tree, a cystobiliary fistula. Symptoms range from mild fever to full-blown sepsis.

  • Extremity pain with or without neurologic deficit is a sign of either bone or muscle involvement.


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