Mushroom Help

[ghermes]

Only in hobby for a year. My mushroom started emitting a lime green string of material today. I haven't seen this over the past year. Is this something to be concerned about or is it OK? Please see photos below.
Thanks, GH

 

[McCarrick]

Only in hobby for a year. My mushroom started emitting a lime green string of material today. I haven't seen this over the past year. Is this something to be concerned about or is it OK? Please see photos below.
Thanks, GH

Could be poop. How is it doing now?

 

[Phil D.]

Eggs??

 

[ghermes]

Thanks, guys. Not sure what it was, but it went away in a few hours and things look fine. No damage and no real change to mushroom. The guy is splitting into several lobes so may have something to do with that.