[Pregnancy of women with endoscopically detected and untreated sterility. Retrospective analysis of "false negative" findings (author's transl)].
Diagnostic endoscopy was applied to 188 women for sterility diagnosis. "Apparent tubal sterility" was recorded from 56 patients. Seven of them turned pregnant without therapy, though bilateral tubal occlusion had been earlier established. An attempt is made in a retrospective analysis to find out what the possible causes might have been of such "false negative" findings. Particular reference is made to spastic intramural tubal occlusion.