[Diagnosis and treatment of cornual obstruction by transcervical fallopian tube cannulation under hysteroscopy].

Transcervical cannulation of the proximal oviduct was performed with a tube catheter and flexible guidewire under hysteroscopic guidance to evaluate and treat intramural fallopian tube obstruction in 37 patients. Hysteroscopic cannulation with direct visualization by laparoscopy was successful in 69.2% of the obstructed tubes, 77.4% of the cases. 74% of the obstructed tubes diagnosed by HSG and/or laparoscopy was patent after hydrotubation and cannulation by hysteroscopy. Transcervical cannulation of the proximal oviduct is an effective method for evaluation and treatment of cornual obstruction.