Table 1.

Predictive factors of morbidity after surgical treatment of 391 patients hospitalized for hepatic hydatid cyst and operated in the Department of General Surgery “A” of the Rabta Hospital in Tunis, Tunisia from January 1, 1996 to December 31, 2006. (Univariate analysis)

Type I	Pure fluid collection - univesicular cyst
Type II	Fluid collection with a split wall detached laminated membrane “water lily” sign
Type III	Fluid collection with septa daughter cysts
Type IV	Heterogenous appearance presence of matrix mimics a solid mass
Type V	Reflecting thick walls calcifications