Ulcerative planum nasale of the Bengal cat is a rare and distinctive skin disease characterized by fissures, crusts, and ulcers of the planum nasale seen only in Bengal cats. A defect resulting in high epidermal turnover and reduced thickness of the stratum corneum was hypothesized.
An inherited disorder is strongly suspected as all affected cats have been Bengal cats. The disease has been seen in Sweden, Italy, the United Kingdom, and in the U.S.A. (2 in Northern California).
Clinical features: scaling progressed to adherent crusting overlying erosions and ulcers. Pruritus or pain were not noted. Bleeding can occur.
Progression: disease is gradual in onset in Bengal cat kittens or young adults.
Signalment predilections: age of onset was between 4 months and 1 year of age.
Differential diagnosis: the disease is visually distinctive.
Therapy: oral prednisolone and topical salicylic acid were palliative in some cats. Topical tacrolimus (Protopic