Idiopathic Facial Dermatitis of Persian and Himalayan Cats

Question 1

What is the signalment for Idiopathic Facial Dermatitis of Persian and Himalayan cats?

Answer 1

young, median age is 12 months

Question 2

What is the presenting complaint for Idiopathic Facial Dermatitis of Persian and Himalayan cats?

Answer 2

skin lesions confined to head, especially periocular, perioral, and chin, but also neck and rarely body folds, often pruritic with secondary bacterial or Malassezia infections

Question 3

What is a differential for a cat with a dirty face with an adherent black exudate on skin and distal portions of hair shaft with or without pruritus?

Answer 3

Idiopathic Facial Dermatitis of Persian and Himalayan cats, may also have accumulations of black wax in ears

Question 4

What are the histopathologic features of Idiopathic Facial Dermatitis of Persian and Himalayan cats?

Answer 4

non diagnostic but include orthokeratotic hyperkeratosis, crusting, and hyperplasia of the epidermis and mixed-cell superficial perivascular to interface dermatitis; may have prominent eosinophils, neutrophils, and mast cells, pigmentary incontinence usually present; epidermal micro abscesses containing eosinophils and neutrophils seen occasionally