Primary Hydatid Cyst of Sigmoid Mesocolon --- A Rare Presentation Authors

Primary peritoneal echinococcosis is rare and the mechanism of primary peritoneal infestation is still not clear. Clinical presentations vary with the site and size of cyst and usually result from complications due to mass effect of the enlarging abdominal cyst. We present a case of hydatid cyst of sigmoid mesocolon who presented with chronic abdominal pain.