Hyperplasia of synovium leads to formation of pannus which destroys cartilage and bone in the affected joint.

大量增滑膜组织会导致血成，进而逐渐侵蚀软骨，成关节损伤。

Pannus is a form of superficial keratitis, or inflammation of the cornea, found most commonly in German Shepherd Dogs, Greyhounds, and Siberian Huskies.

角膜血一种浅表性角膜炎，常见于德国牧羊犬、意大利灵缇犬和哈士奇。