Deep infiltrating endometriosis (DIE) is a chronic progressive estrogen-dependent disease that can also affect structures of the gastrointestinal tract. The disease is usually asymptomatic in long-term, respectively, is manifested with very nonspecific symptoms. Its late detection can lead to irreversible changes in the individual structures. This case report describes a rare case of extensive deep infiltrating endometriosis of posterior pelvic compartment, which resulted into the state of obstructive ileus. It focuses on the essential role of "virtual colonoscopy" using three-dimensional transvaginal sonography (3D-TVUS) in evaluating the extent of the disease.