title: Chronic Low Back Pain due to Retroperitoneal Cystic Lymphangioma.
abstract: Abdominal cystic lymphangioma is a rare benign neoplasm. Less than 1% of lymphangiomas is in the retroperitoneum. Lymphangioma is mostly asymptomatic. Chronic symptoms were reported in retroperitoneal type more than others. Acute symptoms due to complications like infection, cyst rupture or hemorrhage may occur. We report an 18-years-old girl with low back pain from 6 months ago with huge pelvic mass and diagnosis of retroperitoneal cystic lymphangioma.
authors.affiliation: Asieh Sadat Fattahi MD, Godratollah Maddah MD, Endoscopic and Minimally Invasive Surgery, Department of Surgery, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Asieh Sadat
authors.initials: AS
authors.lastname: Fattahi
authors.affiliation: Asieh Sadat Fattahi MD, Godratollah Maddah MD, Endoscopic and Minimally Invasive Surgery, Department of Surgery, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Godratollah
authors.initials: G
authors.lastname: Maddah
authors.affiliation: Asieh Sadat Fattahi MD, Godratollah Maddah MD, Endoscopic and Minimally Invasive Surgery, Department of Surgery, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Motamedolshariati
authors.affiliation: Asieh Sadat Fattahi MD, Godratollah Maddah MD, Endoscopic and Minimally Invasive Surgery, Department of Surgery, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.
authors.forename: Taghi
authors.initials: T
authors.lastname: Ghiasi-Moghadam
keywords: Low Back Pain; Lymphangioma; Retroperitoneum