False-positive urine pregnancy test in a woman with adenomysosis.

We present a case of a 39-year-old woman presenting to the emergency department with persistent vaginal bleeding with myoma and endometrium thickness. The qualitative urine human chorionic gonadotropin (hCG) showed positive result, however, the quantitative serum hCG had negative result. The negative serum hCG result suggests that the false-positive result was not caused by elevated circulating hCG.