Usually on the caudal thighs, the face, or in the oral cavity. On the caudal thighs, the lesions are well-circumscribed, raised, firm, yellow to pink plaques with a characteristic linear shape. Thigh lesions rarely are pruritic. Face and oral cavity lesions usually are nodular or papular. Histologic evaluation will reveal nodular to diffuse granulomatous dermatitis with multifocal collagen degeneration.
Eosinophils are common, especially in early lesions.
Peripheral eosinophilia is noted with the oral form. Treatment is the same for all forms of the disease. 9D until lesions are healed. Address these as needed 2. Radiotherapy, cryotherapy, laser therapy, surgical excision, and immunomodulating drugs have been tried and are successful in some cases.