Primary hydatic cyst of the fallopian tube.

Hydatid disease is endemic in Tunisia. The involvement of the female genital tract is uncommon, and the occurrence in the fallopian tube is exceptional. We present a case of a 42-year-old woman who had complained of a 4-month history of lower abdominal pain. The abdominal ultrasonography and CT scan showed a multiloculated cystic lesion in the left adnexa. The exploratory laparotomy found a cystic mass developing in the left fallopian tube. Left salpingectomy was performed. The pathological examination confirmed the diagnosis of hydatid cyst disease. No recurrence was detected at the 2-year follow-up. Tubal hydatid cyst is an extremely rare condition that should be considered in the differential diagnosis of any cystic lesion in patients from endemic areas.