A 53-year-old, HIV-negative female from Dominican Republic who had been diagnosed with sarcoidosis (affecting the lungs, lymph nodes, and kidneys) 2 years earlier and receiving immunosuppressive therapy with tacrolimus and mycophenolate, who was admitted to another hospital in July 2015 because of lymphocytic meningitis and a high adenosine deaminase (ADA) level. This evidence concerns the gene ADA and sarcoidosis.