"bauble" Hanging From The Bottom Of A Boesemani Rainbow

[Pysgodyn]

Not quite sure if this belongs here. Feel free to move the thread to somewhere more appropriate if necessary.

I've had a few Boesemani Rainbows for many months now, and never before have I seen this. One of them has a spherical "bauble", almost like a sack hanging from its bottom. It seems as if it's enclosed in, and attached by, a thin fibrous sack. Will try and post photos.

ID or explanation would be most appreciated.

 

[BeckyJay]

From what you're saying it sounds like it could be a prolapse, but yeah if you could get pictures up that would help a lot.