Immunohistochemical assays of the epithelial membrane antigen (EMA), S100, vimentin, KI67, creatine kinase (CK), Leber congenital amaurosis (LCA), CD68, antibodies against glial fibrillary acidic protein (GFAP), BCL2, anaplastic lymphoma kinase (ALK), and synaptophysin levels were performed. The gene discussed is ALK; the disease is Leber congenital amaurosis.