PHOTOS 1-2: Skin papules are primary lesions. Papules are small, solid elevations in the skin that can be palpated as a solid mass and grow up to 1cm in diameter. Papules may be pink or red swellings caused by tissue infiltration of inflammatory cells. Hair follicles may or may not be involved. Erythematous papules are seen in scabies and flea bite hypersensitivity. Superficial bacterial folliculitis may also produce papules in the dog.
REFERENCES: PHOTOS 1-2: Scott, DW, Miller, WH, Griffin, CE 2001, 'Muller & Kirk’s small animal dermatology', 6th ed., WB Saunders, Philadelphia, pp. 86-87.
