“…The pathology, together with the lack of parasitic structures or Echinococcus species DNA, is consistent with that described in other species as adult polycystic liver disease. This disease has been described in groups of aged, wild‐living herbivores, including various deer, chamois and Bactrian camels (Picone and others 1981, Munro 1991, Gameel and Bakhsh 2002, Glawischnig and Bago 2010). Genetic disease, plant poisoning and, much less likely, neoplasia (ie, biliary cystadenomas) have been suggested as possible causes.…”