I appreciate that. The confident convergence of opinions here has definitely eased my mind and taught me a lot.This is definitive, and is a very, very abnormal looking oviduct. The inside and the outside should be approximately the same color, and should definitely not be thick. The yellow layers in the lumen indicate pretty severe and chronic inflammation. I thik what you are seeing is not necessarily yolk, but fibrinous material from chronic inflammation. I hope this helps put your mind at ease, salpingitis is a tough thing to diagnose and treat, and treatment is very often unrewarding by the time she shows clinical signs. Sorry for your loss, and thanks for sharing your necropsy photos with us.