Laparoscopic Resection of a Solitary Fibrous Tumor of the Retroperitoneum, Report of a Case and Literature Review

Introduction: solitary fibrous tumor (sft) is a rare mesenchymal tumor that is usually located in the pleural cavity, but it can arise in any part of the body. sfts can develop in the extremities, in the head and neck region, meninges, orbits, thoracic wall, mediastinum, pericardium, peritoneum, retroperitoneum, pelvis, adrenal glands, liver and urogenital system. case presentation: a 29-year-old female, was admitted in the gynaecology and obstetrics unit, for suspected pelvic tumor. ct scan showed a mass with hypervascular behavior and adherent to the uterus. the patient underwent laparoscopic resection of the mass. abdominal exploration revealed a 5 cm mass, rising from the right iliac retroperitoneum above the pelvic space. the tumor was resected totally laparoscopically. the final histological findings were consistent with benign sft. there were few mitotic cells (2 × 10 hpf) and a positivity for cd34 bcl2 and actin 1a4 and negative for cd117, desmin and cd99; mib1 was < 5%. conclusions: this is the first case of sft of the retroperitoneum removed laparoscopically. the laparoscopic approach is useful for the advantages of minimally invasive surgery especially in case of peduncolate tumor as the case reported.