We describe a patient with acquired immunodeficiency syndrome (AIDS) who developed an infection with Mycobacterium avium complex (MAC) after a successful response to highly active antiretroviral treatment for the human immunodeficiency virus. The onset of this infection occurred when the patient had an undetectable viral load and a CD4+ lymphocyte count no longer in the range of what has been considered high risk for MAC (<0.1×109/L [<100/µL]).
Dworkin MS, Fratkin MD. Mycobacterium avium Complex Lymph Node Abscess After Use of Highly Active Antiretroviral Therapy in a Patient With AIDS. Arch Intern Med. 1998;158(16):1827-1829. doi: