- Australian Labradoodle
- Labrador Retriever
HNPK - Hereditary Nasal Parakeratosis
Hereditary nasal parakeratosis (HNPK) is an inherited autosomal recessive skin disorder found in Labrador retriever dogs that is characterized by a buildup of keratinocytes or hyperkeratosis, thickening and hardening of the skin, causing crusts, fissures and depigmentation of the nasal planum. These symptoms begin to develop around 6 months.A mutation for this hereditary skin disorder has been identified at the University of Bern in Switzerland.The disease is inherited in an autosomal recessive manner.