title: A 52-year-old HIV-positive man with abdominal pain.
authors.affiliation: Section of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Texas Tech University Health Sciences Center, Lubbock, Texas;
authors.forename: Tashfeen
authors.initials: T
authors.lastname: Mehmood
authors.affiliation: Section of Cardiology, Department of Internal Medicine, Virginia Tech Carilion School of Medicine, Roanoke, Virginia;
authors.forename: Matt J
authors.initials: MJ
authors.lastname: Chua
authors.affiliation: Section of Infectious Diseases, Department of Internal Medicine, Texas Tech University Health Sciences Center, Amarillo, Texas, USA.
authors.forename: Faisal A
authors.initials: FA
authors.lastname: Khasawneh