TY - JOUR T1 - Pelvic pain in young girls: not only dysmenorrhoea! JF - BMJ Case Reports DO - 10.1136/bcr-2018-226041 VL - 2018 SP - bcr-2018-226041 AU - Vera Furtado Veiga AU - Barbara Ribeiro AU - Hermínia Afonso AU - Isabel Reis Y1 - 2018/11/08 UR - http://casereports.bmj.com/content/2018/bcr-2018-226041.abstract N2 - Imperforate hymen is the most frequent cause of haematocolpos, although it is a rare malformation (1:2000). We present two cases of young girls with cyclic abdominal pain and urinary symptoms. At gynaecological examination, they all presented imperforate hymen and ultrasound revealed significant vaginal distension. X-shaped hymenectomy was performed in all patients. The later the diagnosis of imperforate hymen, the higher the risk of complications like haematometra, haematosalpinx, haemoperitoneum and infections such as tubo-ovarian abscesses, peritonitis and endometriosis (retrograde menstruation theory). ER -