COLLIES (ROUGH AND SMOOTH)

• Cutaneous histiocytosis
• Superficial bacterial folliculitis
• Muzzle folliculitis/furunculosis
• Malassezia dermatitis
• Protothecosis
• Food hypersensitivity
• Pemphigus erythematosus
• Discoid lupus erythematosus
• Idiopathic ulcerative dermatosis in Shetland Sheepdogs and Collies
• Vitiligo
• Waardenburg-Klein syndrome
• Idiopathic sterile granuloma andpyogranuloma
• Drug reactions – Ivermectin and milbemycin – High doses can cause tremors, ataxia, coma and death
• Gastric neoplasia (Rough Collies)
• Lymphocytic-plasmacytic colitis (Rough Collies)
• Pancreatic acinar atrophy (causing exocrine pancreatic insufficiency)
• Canine cyclic neutropaenia
• Immune-mediated haemolytic anaemia
• Systemic lupus erythematosus
• Aspergillosis
• Carpal ligament weakening
• Carpal soft tissue injuries
• Congenital elbow luxation
• Calcaneoquartal subluxation due to plantar tarsal ligament rupture
• Sweat gland tumour
• Benign fibrous histiocytoma
• Haemangiopericytoma
• Keratoacanthoma
• Nasal cavity tumours
• Colorectal neoplasia
• Congenital bilateral vestibular disease
• Congenital deafness
• Cerebellar degeneration (seen in Rough Collies in Australia)
• Neuroaxonal dystrophy
• Micropalpebral fissure
• Entropion (usually lower lids, may be associated with micropalpebral fissure)
• Distichiasis (Rough Collies)
• Medial canthal pocket syndrome – Breed predisposition resulting from head shape
• Nodular Episclerokeratitis
• Microcornea
• Congenital, sub-epithelial, geographic corneal dystrophy
• Corneal dystrophy (Rough Collies)
• Cataract
• Collie eye anomaly –  High incidence in this breed throughout the world (50–90% has been reported)
• Multifocal retinal dysplasia
• Generalised progressive retinal atrophy (GPRA)
• Central progressive retinal atrophy (CPRA) or retinal pigment epithelial dystrophy (RPED) – becoming less prevalent after the introduction of control schemes
• Optic nerve hypoplasia
• Optic nerve colobomas (the result of merle to merle breeding)
• Ectopic ureters
• Urethral sphincter mechanism incompetence (causing urinary incontinence)
• Penile hypoplasia
• Aspergillosis