Neapolitan Mastiff – Disease Predisposition Posted by Paul | Oct 24, 2010 | Disease Predispositions | 0 | NEAPOLITAN MASTIFF Musculoskeletal conditions Cranial cruciate ligament rupture May occur at a young age in this breed Ocular conditions Entropion Breed predisposition; polygenic inheritance likely Ectropion Breed predisposition Macropalpebral fissure resulting in combined entropion-ectropion (‘diamond eye’) Breed predisposition Eversion of the cartilage of the nictitating membrane Breed predisposition Prolapse of the gland of the nictitating membrane (‘cherry eye’) Breed predisposition Cataract Inheritance suspected Reproductive conditions Vaginal hyperplasia Breed predisposition