In addition to the pathological findings, immunoglobulin A (IgA) antibody for Mycobacterium avium complex (MAC), enlargement of lymph nodes and hepatosplenomegaly indicated disseminated MAC, while sarcoidosis was considered as another important differential diagnosis according to elevated angiotensin-converting enzyme, soluble interleukin-2 receptor and uveitis. This evidence concerns the gene CD79A and sarcoidosis.