Secondary infection of amoeba and typhoid fever in severe malnourished pediatric patient with Type I choledocal cyst: a case report.

Amebiasis is caused by the protozoan Entamoeba histolytica. Extraintestinal amebiasis manifestation includes liver abscess and other rare manifestations involving the lungs, heart and brain. Liver abscess is the most common extraintestinal manifestation. Only few cases of amebic splenic abscess and two cases of gall bladder abscess have been reported. Typhoid fever is an infection caused by Salmonella typhi. It can cause extraintestinal complications such as myocarditis, endocarditis, pneumonia, empyema, osteomyelitis, arthritis, cholecystitis, spleen abscess and liver abscess. Choledocal cyst is a congenital dilation of the biliary branch. If left untreated, it can cause morbidity from cholangitis, cyst perforation, liver failure and malignancy. Until now, there is no publication about double infection of amebic and salmonella infection in a child with choledocal cyst.