Less frequently encountered diseases include, Addison's Disease, autoimmune testicular atrophy, degenerative myelopathy, dermatomyositis, exocrine pancreatic insufficiency, glomerulonephritis,
idiopathic thrombocytopenic purpura, immune mediated hemolytic anemia, Legg - Calvé - Perthes, myasthenia gravis, sterile pyogranuloma / granuloma syndrome, uveodermatologic syndrome, and vitiligo.