Schnauzer – Disease Predisposition

Miniature Schnauzer

SCHNAUZER

Cardiovascular conditions

Patent ductus arteriosus
  • Common congenital abnormality
  • Miniature Schnauzers predisposed
Pulmonic stenosis
  • Miniature Schnauzers are predisposed
Endocardiosis
  • Also known as chronic valvular disease
  • Miniature Schnauzers predisposed
Sick sinus syndrome
  • Miniature Schnauzers predisposed
Dermatological conditions
Atopy (Miniature Schnauzers)
Food hypersensitivity (Miniature Schnauzers)
Superficial suppurative necrolytic dermatitis of Miniature Schnauzers
Seasonal flank alopecia
Schnauzer comedo syndrome
  • Affects Miniature Schnauzers
Acquired aurotrichia in Miniature Schnauzers
Papilloma-virus-associated pigmented lesions
  • Affects Miniature Schnauzers
Vitiligo
  • Miniature Schnauzers account for 40% of cases
  • Very rare
Follicular cyst
Epidermal naevi
  • Affects young adult Miniature Schnauzers

Drug reactions

Sulphonamides
Gold
Shampoos

Endocrine conditions

Central diabetes insipidus (CDI)
Hypothyroidism (Giant Schnauzers)
Hypothyroidism (Miniature Schnauzers)
  • Possible breed predisposition
Diabetes mellitus (Miniature Schnauzers)
  • Possible breed predisposition
Primary hypoparathyroidism (Miniature Schnauzers)
  • Uncommon condition
  • Possible breed predisposition

Gastrointestinal conditions

Congenital idiopathic megaoesophagus (Miniature Schnauzers)
Haemorrhagic gastroenteritis (Miniature Schnauzers)
  • Breed predisposition
Vacuolar hepatopathy associated with hyperlipidaemia (Miniature Schnauzers)
Congenital portosystemic shunt (Miniature Schnauzers)
  • Breed predisposition
Cholelithiasis (Miniature Schnauzers)
  • Breed predisposition
Pancreatitis (Miniature Schnauzers)
  • Breed predisposition
Selective malabsorption of cobalamin (vitamin B12) (Giant Schnauzers)

Haematological conditions

Selective malabsorption of cobalamin (vitamin B12) (Giant Schnauzers)
Primary idiopathic hyperlipidaemia (Miniature Schnauzers)
  • Familial; suspected to be due to an inherited defect

Musculoskeletal conditions

Myotonia
  • Affects Miniature Schnauzers
  • Congenital in this breed

Neoplastic conditions

Trichoepithelioma (Miniature Schnauzers)
  • Possible breed predisposition
Sebaceous gland tumours (Miniature Schnauzers)
  • Possible breed predisposition to nodular sebaceous hyperplasia
Melanoma
  • Breed predisposition
Lipoma (Miniature Schnauzers)
  • Possible breed predisposition
Canine cutaneous histiocytoma (Miniature Schnauzers)
  • Breed predisposition
Melanoma of the digit
  • Possible breed predisposition

• Average age 10–11 years

Squamous cell carcinoma of the digit (Giant Schnauzers)
  • Possible breed predisposition
Testicular neoplasia (Miniature Schnauzers)
  • Believed to be a breed at increased risk
Limbal melanoma
  • Possible breed predisposition

Neurological conditions

Narcolepsy-cataplexy (Giant Schnauzers)
Hyperlipidaemia as a cause of seizures (Minature Schnauzers)
  • Familial; possibly due to an inherited defect in lipoprotein metabolism
Partial seizures (‘fly-biting’ and ‘star-gazing’ seizures in Miniature Schnauzers)

Ocular conditions

Keratoconjunctivitis sicca
  • Breed predisposition
Limbal melanoma
  • Possible breed predisposition
Glaucoma (Giant and Miniature Schnauzers)
  • Possible breed predisposition
Lens luxation (Miniature Schnauzers)
  • Breed predisposition
Congenital hereditary cataract (Miniature Schnauzers)
Cataract 1 (Miniature Schnauzers)
Cataract 2 (Miniature Schnauzers)
  • Inheritance suspected
Cataract 3 (Standard Schnauzer)
  • Inheritance suspected
Cataract 4 (Giant Schnauzers)
  • Inheritance suspected
Multifocal retinal dysplasia (Giant Schnauzers)
  • Congenital condition
Generalised progressive retinal atrophy (GPRA) (Giant Schnauzers)
Generalised progressive retinal atrophy (GPRA) (photoreceptor dysplasia) (Miniature Schnauzers)
Micropapilla (Miniature Schnauzers)
  • Congenital condition
Optic nerve hypoplasia (Miniature Schnauzers)
  • Congenital condition

Renal and urinary conditions

Familial renal disease (renal dysplasia) (Miniature Schnauzers)
Urate urolithiasis (Miniature Schnauzers)
  • Higher incidence has been noted in this breed in some surveys
Calcium oxalate urolithiasis (Miniature Schnauzers)
  • Higher incidence has been noted in this breed

in some surveys

• Average age at diagnosis is 5–12 years

• Males may be predisposed

Struvite (magnesium ammonium phosphate) urolithiasis (Miniature Schnauzers)
  • Higher incidence has been noted in this breed in some surveys
Calcium phosphate urolithiasis (hydroxyapatite and carbonate apatite) (Miniature Schnauzers)
  • Higher incidence has been noted in this breed in some surveys
Silica urolithiasis (Miniature Schnauzers)
  • Higher incidence has been noted in this breed in some surveys

Reproductive conditions

Cryptorchidism (Miniature Schnauzers)
Believed to be a breed at increased risk
Testicular neoplasia (Miniature Schnauzers)
  • Believed to be a breed at increased risk
Male pseudohermaphroditism (Miniature Schnauzers)
  • Congenital abnormality reported in this breed

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