Abstract
Maternal Chlamydia trachomatis infections have been associated with premature rupture of the membranes, preterm labor, premature birth, and fetal wastage. Women with acute infection may be at particular risk. We report the case of an unexplained second trimester spontaneous abortion with serologic evidence of recent infection with C. trachomatis. Serum IgG antibody titer ultimately exceeded 1: 10,240. This patient also had an incidental finding of appendiceal carcinoid tumor. While treatment of asymptomatic chlamydial infections in early pregnancy is controversial, we suggest that delaying treatment may result in fetal loss.