Diagnostic Sonography • Case Study Atlas

Fetal Echogenic Intracardiac Focus (EIF)

A structured ultrasound case collection covering clinical presentation, sonographic morphology, image interpretation, reporting and diagnostic learning points.

SPLEEN ULTRASOUND CASE SERIES

Case Index

01 Fetal Echogenic Intracardiac Focus →

Chapter 01 • Case Study

Fetal Echogenic Intracardiac Focus

01 Clinical History

Routine second-trimester obstetric ultrasound demonstrates a small echogenic focus within the fetal cardiac ventricle. The finding is identified during assessment of the four-chamber view. No major structural cardiac abnormality is demonstrated on the provided examination. The finding should be interpreted in conjunction with the complete fetal anatomical survey, gestational age and available aneuploidy screening information.

02 Ultrasound Image

Figure 1. Fetal four-chamber cardiac view demonstrating a small echogenic intracardiac focus within the ventricle.

03 Ultrasound Morphology

Feature	Sonographic Description
Location	Within a fetal cardiac ventricle, commonly visualized in the left ventricle.
Appearance	Small discrete echogenic focus with brightness similar to or greater than surrounding bone.
Size	Usually a small focal echogenic area; document its location and appearance rather than relying solely on size.
Mobility	Typically remains associated with the papillary muscle / chordal region.
Acoustic Shadow	May demonstrate a small or subtle posterior acoustic shadow.
Cardiac Anatomy	The four-chamber view and outflow tracts should be assessed for associated structural abnormalities.
Doppler	Doppler assessment is interpreted according to the clinical indication and complete fetal cardiac examination.

04 Ultrasound Report

A small echogenic intracardiac focus is visualized within the fetal cardiac ventricle. The fetal four-chamber view demonstrates preserved overall cardiac chamber appearance on the provided examination.

No obvious major structural cardiac abnormality is identified on the described views.

The remainder of the fetal anatomical survey should be evaluated for additional sonographic markers or structural abnormalities.

05 Impression

Sonographic Impression Fetal echogenic intracardiac focus identified within the cardiac LV. In the absence of additional structural abnormalities or sonographic markers, the finding should be correlated with available aneuploidy screening and the overall clinical context.

06 Recommendation

Correlate with the complete fetal anatomical survey and available aneuploidy screening results. If the finding is isolated and screening is reassuring, management should follow the applicable local obstetric/fetal medicine guidelines. Further evaluation may be considered when additional abnormalities or risk factors are present.

07 Learning Points

EIF is a focal echogenic finding within the fetal heart and is commonly encountered during routine obstetric ultrasound.

The four-chamber view and fetal cardiac anatomy should be carefully evaluated when an EIF is identified.

An isolated EIF should be interpreted together with the patient's aneuploidy screening status and the remainder of the ultrasound examination.

The presence of additional sonographic markers or structural abnormalities changes the clinical context and may require further evaluation.

07 Learning Points

Key sonographic feature.

Important differential diagnosis.

Important scanning technique.

Common interpretation pitfall.

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