%0 Journal Article %T An Uncommon Condition in a Patient with Common Variable Immune Deficiency %A Carolyn Lovell %A Desha Jordan %A Kelly Homlar %A null %J Journal of Allergy and Clinical Immunology %D 2017 %R 10.1016/j.jaci.2016.12.029 %X There is not a published case report describing a common variable immunodeficiency (CVID) patient presenting with pigmented villonodular synovitis (PVNS). Commonly, PVNS presents in the knee or hip. Presentation with ankle involvement is much rarer, with only a few such cases reported. Progression to bilateral ankle involvement appears to have not been previously documented. %U https://www.jacionline.org/article/S0091-6749(16)31547-0/abstract