Related Experiment Video
Updated: Feb 13, 2026

Measuring Endoreduplication by Flow Cytometry of Isolated Tuber Protoplasts
Published on: March 9, 2018
Evolution of a rare ECG pattern in an aggressive case of neonatal tuberous sclerosis complex
Federica Iezzi1, Andrea Quarti1, Alessandro Capestro1
1Department of Paediatric and Congenital Cardiac Surgery and Cardiology, Azienda Ospedaliero-Universitaria Ospedali Riuniti Ancona "Umberto I, G. M. Lancisi, G. Salesi" Ancona, via Conca n. 71, 60128 Ancona, Italy.
Insights
Rhabdomyomas, often linked to tuberous sclerosis complex, can infiltrate the heart. A rare ECG pattern was observed in a severe neonatal case, highlighting potential conduction system destruction and arrhythmias.
Area of Science:
- Pediatric Cardiology
- Genetics
- Oncology
Background:
- Rhabdomyomas are the most common cardiac tumors in children.
- They are frequently associated with tuberous sclerosis complex (TSC), an autosomal dominant disorder.
- TSC involves tumor-like malformations across multiple organ systems.
Purpose of the Study:
- To describe a rare electrocardiogram (ECG) pattern.
- To highlight this pattern in a severe neonatal case of tuberous sclerosis complex.
Main Methods:
- Case report of a severe neonatal tuberous sclerosis complex.
- Electrocardiogram (ECG) analysis.
Main Results:
- A rare ECG pattern was identified in a severe neonatal TSC case.
- Significant rhabdomyomatosis can lead to myocardial infiltration by rhabdomyoma-like cells.
- Increased areas of fibrosis were observed in the myocardium.
Conclusions:
- Rhabdomyomas may spontaneously regress, necessitating close follow-up in stable cases.
- Diffuse rhabdomyomatosis can destroy the conduction system, leading to arrhythmias.
- This case underscores the importance of recognizing specific ECG patterns in neonatal TSC.
Introduction:
Rhabdomyomas are the most frequent cardiac tumors in children. Furthermore, they are often associated to tuberous sclerosis complex, an autosomal dominant neurocutaneous disorder characterized by tumor-like malformations that involve many organ systems.
Presentation Of The Case:
We describe a rare ECG pattern in a severe case of neonatal tuberous sclerosis complex.
Discussion:
In the presence of significant rhabdomyomatosis related to tuberous sclerosis, multiple clusters of rhabdomyoma-like cells can infiltrate the myocardium, with increased fibrosis areas.
Conclusion:
Considering the fact that rhabdomyomas often show spontaneous regression, close follow-up is sufficient in hemodynamically stable cases. Destruction of the conduction system, with arrhythmias as consequence, can be the presenting feature of diffuse rhabdomyomatosis.
Related Concept Videos
Aggression
The Evidence for Evolution
Convergent Evolution
Fixed Action Patterns
Genome Size and the Evolution of New Genes
Gene Evolution - Fast or Slow?
In contrast, regions which code...

