Dolichoectasia of vertebrobasilar system: a rare cause of tic douloureux.

The usual outcome of rudimentary horn pregnancy is rupture in second trimester in 90% of cases.[1] Early diagnosis of this rare form of pregnancy prior to rupture is essential for successful management in order to prevent maternal morbidity and mortality.[2] Though uterine anomalies can be suspected on bimanual or ultrasonographic examination,[2,3] these can be diagnosed in only 14% cases before these become symptomatic.[4] In a review of 266 rudimentary horn presentations (210 gynecologic and 156 obstetric), sensitivity of USG as a diagnostic tool was shown to be 26%.