Figure 1: radiologic findings
Abdominal ultrasound and chest X-ray were normal.
Hydatid serology was positive.
The patient was operated on via the left Leriche approach, with resection of the protruding dome, evacuation of the contents of the cyst, which was superinfected with gelatinous material (figure 2) , curettage of the iliac wing to evacuate the daughter vesicles, and drainage using an irrigation-suction system.