The patient was started on topical steroid and cycloplegic treatment, and laboratory work-up including PPD with control, CBC, angiotensin converting enzyme, FTA-ABS, c-ANCA, HLA-B5, HLA-B27, Bartonella panel, T. canis ELISA, and toxoplasmosis IgG and IgM was initiated. This evidence concerns the gene CD40LG and toxoplasmosis.