Turan, HakanBeşir, Fahri HalitBüyükkaya, RamazanYaşar, MehmetDoğan, Sami2020-04-302020-04-3020121300-0330https://hdl.handle.net/20.500.12684/56Hereditary angioedema is a disease characterized by subcutaneous edema without urticaria, upper airway obstruction, and gastrointestinal symptoms. It results from congenital deficiency of C1 esterase inhibitor. This rarely seen disease is autosomal dominant inherited, and severe forms can be life threatening. Here, we present a case of hereditary angioedema who applied to the emergency room with severe abdominal pain, with low levels of C1 esterase inhibitor and C4 and with specific ultrasound findings, and completely recovered with the application of C1 esterase inhibitor concentrate. Copyright © 2012 by Türkiye Klinikleri.trinfo:eu-repo/semantics/closedAccessAbdominal pain; Angioedemas, hereditary; Complement C1 inhibitor proteinArticle222104106Q4