Hen with lump on lower back

[Screebert]

Our hen had a prolapsed egg chute, for an unknown length of time. She became very ill over the past few days, and we had to put her down yesterday. She had a strange hump on her lower back for a few months, and I am wondering whether that was a symptom of something? Like, an egg stuck there?
We do not want this to happen again, and we would like to catch it earlier if it happens to another chicken.

This is my post from yesterday: https://www.backyardchickens.com/forum/viewtopic.php?id=482028

 

[Miss Lydia]

from all I've read when a hen is egg bound they don't last long unless she can pass it, what you saw could have been an tumor or even an abscess, did you ever examine her up close? I am sorry for you loss, but at age 5 it could have be a number of things.