Found during a carcass inspection on a Muntjac taken last week. Noticed Kidney was an abnormal shape and firm to feel. On further inspection discovered a cyst filled with a clear liquid with white flecks inside. No other abnormalities found. It was an older Buck (6+ years old at a guess). In good shape other than the effect a well placed bullet creates so no qualms about putting into the food chain. I am presuming a parasite of some kind. Had a look at some other posts on Kidney abnormalities but thought I would add to the bank of info. Would welcome comment from the vets.