Despite lowering SDF1α levels, sitagliptin did not adversely affect immune or virological status, or increase immune activation, but did improve glycemia in healthy, nondiabetic HIV-positive adults. These safety data allow future efficacy studies of sitagliptin in HIV-positive people with cardiometabolic complications.

Primary thyroid lymphoma is a rare form of non-Hodgkin’s lymphoma that typically presents as a rapidly enlarging goiter in patients with a history of autoimmune thyroid disease. We present the evaluation, pitfalls in diagnosis, and treatment of a 49-year-old woman with diffuse large B-cell primary thyroid lymphoma presenting with airway obstruction.