title: Out of the blue: the Grey-Turner's sign.
authors.affiliation: First Department of Medicine, Fondazione IRCCS Policlinico San Matteo, University of Pavia, Piazzale Golgi 19, 27100, Pavia, Italy.
authors.forename: Gabriella
authors.initials: G
authors.lastname: Carnevale-Maffé
authors.forename: Pietro Amedeo
authors.initials: PA
authors.lastname: Modesti
mesh_terms: D001416:Back Pain / Q000209:etiology; D006470:Hemorrhage / Q000175:diagnosis*; D006801:Humans; D010859:Pigmentation Disorders / Q000209:etiology*; D012187:Retroperitoneal Space