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  • 1607
  • 2016-03-10

LIVE INTERACTIVE SURGERY: Laparoscopic left lateral sectionectomy for echinococcosis alveolaris

Epublication WebSurg.com, Mar 2016;16(03). URL:
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Human alveolar echinococcosis is a fatal, chronically progressive hepatic infestation. It has a long asymptomatic period. The lesions are invasive, tumor-like, multivesiculated with exogenous budding containing mucoid material with surrounding fibrous stroma. The lesions vary in size from a pin point to a hen’s egg size and are never huge. There are no daughter cysts and scolices are never present. The liver is the most common site for the alveolar form. Alveolar echinococcosis of the liver behaves like a slow-growing liver cancer. Differential diagnoses of alveolar echinococcosis include several hepatic tumors such as cystadenoma, cystadenocarcinoma, peripheral cholangiocarcinoma, and metastasis. These tumors can be differentiated from alveolar echinococcosis because they are usually enhanced and rarely calcified. Lack of enhancement is a characteristic feature of alveolar echinococcosis lesions and might aid in the differential diagnosis of hepatic lesions. The mainstay of treatment is surgical in localized lesions. Medical therapy only stabilizes the lesions in some cases. Liver transplantation may be required in advanced cases. Metastasis of the disease occurs in advanced cases resulting in lesions in the lung and the brain. Radical surgical procedures are the best chance of definite cure of the disease because the cyst is removed from the patient's body as a whole, leaving no chance for recurrence. Recurrence after primary treatment of echinococcosis multilocularis liver disease is an important issue. The major hepatic resection, which is a radical procedure is a safe and effective option for treatment of liver echinococcosis multilocularis. Non-anatomic hepatic resections should be performed for cysts of a relatively small size and subcapsular location whereas anatomical resections should be performed for cysts impairing most of liver segments.