title: Laparoscopic treatment of a solitary fibrous tumor of the greater omentum presenting as spontaneous haemoperitoneum.
abstract: A 24-year-old man was admitted at the emergency department with a lower quadrant abdominal pain and a slight hypoglycaemia. Abdominal ultrasonography showed the presence of a fluid peritoneal collection and a 3.2 x 2.5 cm hypoisoechogenic mass closed to the left iliac vessels with an echo-color-Doppler pattern similar to that of a hamartoma. CT examination confirmed the hypothesis of a vascular tumour. Although an abdominal angiography added no new information to establish a preoperative diagnosis, it showed a well vascularized mass. The patient underwent laparoscopy that revealed a bleeding mass of the great omentum. Laparoscopic stapled resection of the greater omentum was carried out. The solid lesion consisted of spindle-shaped cells, but no atypical cells were observed. The histological findings were diagnostic of a benign solitary fibrous tumor, an extremely rare neoplasm for a long time considered to be an exclusively thoracic lesion. This is the first case of a solitary fibrous tumor presenting as haemoperitoneum and the first time it was removed laparoscopically. The patient is disease-free at the 2-year follow-up.
authors.affiliation: Università degli Studi di Perugia, Dipartimento di Scienze Chirurgiche, Sezione di Chirurgia Generale e d'Urgenza. albertopatriti@alice.it
authors.forename: Alberto
authors.initials: A
authors.lastname: Patriti
authors.forename: Fabio
authors.initials: F
authors.lastname: Rondelli
authors.forename: Nino
authors.initials: N
authors.lastname: Gullà
authors.forename: Annibale
authors.initials: A
authors.lastname: Donini
mesh_terms: D000328:Adult; D006465:Hemoperitoneum / Q000209:etiology*; D006801:Humans; D010535:Laparoscopy; D008297:Male; D009852:Omentum; D010534:Peritoneal Neoplasms / Q000150:complications* / Q000601:surgery*