Primary gestational choriocarcinoma of the vagina: magnetic resonance imaging findings.

A 33-year-old nulligravid Filipino woman was admitted to the gynaecology ward of Princess Margaret Hospital in April 2014, with lower abdominal pain and recurrent retention of urine. Her pregnancy test was positive. Per-vaginal examination revealed a 4-cm firm, fixed, and wide-based vaginal mass with smooth wall over the upper anterior vagina. Bedside transabdominal ultrasonography confirmed a 4.5-cm solid mass in the anterior vagina and a 3.5-cm intramural fibroid over the left side of the uterus. No adnexal mass or free fluid was seen. Beta human chorionic gonadotropin (β-hCG) level was elevated to 270 743 IU/L (reference level, Hong Kong Med J 2016;22:181–3 DOI: 10.12809/hkmj144362 T Wong *, FRCR, Eliza PY Fung, FHKCR, FHKAM (Radiology), Alfred WT Yung, FHKCR, FHKAM (Radiology)