title: Eosinophilic nodular dermatoses.
abstract: This article describes the etiology, clinical signs, diagnosis, and treatment of various equine nodular diseases. Although of different etiologies, this group of diseases shares a common histologic reaction pattern characterized by infiltration of eosinophils and collagen degeneration. Collagenolytic granuloma, axillary nodular necrosis, unilateral papular dermatosis/eosinophilic folliculitis, amyloidosis, habronemiasis, and mast cell tumors are discussed.
authors.affiliation: Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, Texas A&M University, College Station, USA.
authors.forename: P T
authors.initials: PT
authors.lastname: Mathison
mesh_terms: D000686:Amyloidosis / Q000473:pathology / Q000662:veterinary; D000818:Animals; D003872:Dermatitis / Q000473:pathology / Q000662:veterinary*; D003937:Diagnosis, Differential; D004802:Eosinophilia / Q000473:pathology / Q000662:veterinary*; D004803:Eosinophilic Granuloma / Q000473:pathology / Q000662:veterinary; D006734:Horse Diseases / Q000473:pathology*; D006736:Horses; D012515:Mast-Cell Sarcoma / Q000473:pathology / Q000662:veterinary; D012876:Skin Diseases, Parasitic / Q000473:pathology / Q000662:veterinary; D012878:Skin Neoplasms / Q000473:pathology / Q000662:veterinary; D017205:Spirurida Infections / Q000473:pathology / Q000662:veterinary