The terms salpingitis, peritonitis and internal laying are sometimes used interchangeably. Salpingitis is an ecoli infection that is seen in high production birds when the cloaca becomes "loose" and feces are sucked back into the oviduct, setting up an infection; as you know, in birds, infection solidifies into a cheesy mass and egg yolks back up behind that. EYP is when yolks are deposited in the abdomen and set up infection. That and salpingitis basically can result in the same thing, solid masses of infection mixed with the egg material. Whatever you call it, it is a chronic condition. If you catch an infection very early, extremely hard to do since you may see no symptoms for ages, you may be able to kick it out with antibiotics. However, most folks aren't aware it's happening till they realize the abdomen is full of fluid or masses. Whatever term you use, the result is often the same, masses build up, hen starts to lose weight, becomes weak, then dies.
