Last night and this morning we were called by the vet on Loki’s condition.
Loki is acting fine right now. They have removed the big cyst and neutered him to prevent future cysts from forming.
Right now they are paying extra attention to his peeing, because they were operating close to his bladder. After having done so he is most likely to return home.
Hopefully he will recover soon so that we have our old puppy back in no-time flat.