Background: In terms of gynaecological laparoscopic surgery, major complications affecting great vessels, and especially the retroperitoneal ones, are unusual.
Case presentation: We introduce a case of a retroperitoneal haematoma associated with psoas muscle pseudoaneurysm, as a side effect of Veress needle insertion, during laparoscopic surgery. Such complication was managed conservatively at first, requiring finally arterial embolisation.
Conclusion: Even though potential complications associated with laparoscopic surgery are infrequent, they must not be underestimated, and in some cases might need a multidisciplinary management.