Related Experiment Video
Updated: Nov 14, 2025

Upright Imaging of Drosophila Egg Chambers
Published on: March 13, 2015
Ebstein's Anomaly: An Unanticipated Differential Diagnosis of Egg-on-Stick Appearance and the Diagnostic Dilemma
Hayatu Umar1, Usman Muawiyya Zagga1, Femi Akindotun Akintomide1
1Department of Internal Medicine, Usmanu Danfodiyo University Teaching Hospital, Sokoto, Nigeria.
Insights
Ebstein's anomaly, a rare congenital heart defect, can present unusually. This case highlights the "egg-on-stick" appearance, a rare finding in Ebstein's anomaly, diagnosed via echocardiography.
Area of Science:
- Cardiology
- Congenital Heart Disease
Background:
- Ebstein's anomaly (EA) is a rare congenital cardiac abnormality affecting ~1 in 200,000 live births.
- Pathologically, EA involves "atrialization" of the right ventricle's basal region.
- This case is the first reported instance of EA presenting with an "egg-on-stick" appearance.
Abstract:
BACKGROUND Ebstein's anomaly (EA) is a rare congenital cardiac abnormality with diverse anatomic and spectra of clinical presentations. This heart anomaly occurs in approximately 1 per 200 000 live births and accounts for <1% of congenital cardiac diseases. The main pathologic finding is "atrialization" of the basal region of the right ventricle. EA has been described extensively in the literature; however, to the best of our knowledge, this is the first reported case of EA presenting with "egg-on-stick" appearance. CASE REPORT A 42-year-old woman presented on account of 2 years of progressive abdominal swelling, early satiety, and progressive weight loss. There was an associated history of dyspnea on exertion, easy fatigability, paroxysmal nocturnal dyspnea, and orthopnea. General examination revealed egg-on-stick appearance: visible distended abdominal wall veins and massive ascites with no pedal edema. Overall, pertinent cardiovascular examination findings and echocardiographic features are in keeping with EA. CONCLUSIONS We present the likely first case of egg-on-stick appearance as part of the presentation of EA, which posed a diagnostic dilemma. Echocardiography can help in unraveling this dilemma.
More Related Videos
05:47Optimized Ex-ovo Culturing of Chick Embryos to Advanced Stages of Development
Published on: January 24, 2015
09:53The Preparation of Chicken Ex Ovo Embryos and Chorioallantoic Membrane Vessels as In Vivo Model for Contrast-Enhanced Ultrasound Imaging and Microbubble-Mediated Drug Delivery Studies
Published on: February 9, 2021