Massive spontaneous haemoperitoneum in a post-partum patient with neurofibromatosis type 1.

Neurofibromatosis type 1 (NF-1) or von Recklinghausen's disease is a genetic, progressive, multi-system disease that predominantly affects the skin and nervous system. Vascular involvement is rare, but can have catastrophic results. Pregnant patients with this disease need careful, multidisciplinary follow up in order to control possible vascular alterations, which usually affect the kidneys. We present the case of a patient diagnosed with NF-1 who debuted with massive spontaneous hemoperitoneum in the late postoperative period of an elective Cesarean section. Spontaneous bleeding from large vessels is a rare but potentially lethal complication that can occur in patients with NF-1, and may require urgent surgical treatment.