Chorionic Bump

Contribution:

Dr Melanie Lau

Patient data: Female 34 yo

Presentation: Dating scan for TOP

Commentary: No fetal pole seen

Intrauterine GS age 6 w 3 d commensurate with dates

Yolk sac seen

Soft tissue, avascular "bump" adjacent to the yolk sac

Diagnosis:

Chorionic bump

References: https://radiopaedia.org/articles/chorionic-bump