Fetal rhombencephalon

Case contributed by Dr Matt A. Morgan

Presentation

Abdominal pain. Normal first trimester ultrasound at 8 weeks 4 days.

Patient Data

Gender: Female
Modality: Ultrasound

There is a prominent cystic region in the posterior aspect of the embryonic head. This is compatible with the normal fetal rhombencephalon. Smaller round hypoechoic focus represents forebrain.

Modality: Annotated image

A blue arrow points to a prominent cystic region in the posterior aspect of the embryonic head. This is compatible with the normal fetal rhombencephalon.

Case Discussion

The fetal rhombencephalon (also known as the "embryonic rhombencephalon" or "cystic rhombencephalon") is a normal finding in an embryo/ fetus at 8-10 weeks of age. It should not be considered a developmental abnormality.

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Case Information

rID: 37588
Case created: 15th Jun 2015
Last edited: 3rd Oct 2015
System: Obstetrics
Inclusion in quiz mode: Excluded

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