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

1.大量增生滑膜组织会导致血生成，进而逐渐侵蚀软骨，成关节损伤。

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

2.角膜血种浅表性角膜炎，常见于德国牧羊犬、意大利灵缇犬和哈士奇。