Resumen

BASTIDAS-CUELLAR, M. Luisa; MONDRAGON, Ernesto Vallejo; SALAZAR, Ángelo Valencia  y  MADRID, Antonio. Intracardiac tumour in a teenage patient. Rev. Colomb. Cardiol. [online]. 2017, vol.24, n.3, pp.301-306.  Epub 11-Ago-2016. ISSN 0120-5633.  https://doi.org/10.1016/j.rccar.2016.06.011.

Reports of paediatric intracardiac tumours are rare; benign tumours constitute 80% of primary cardiac neoplasms, whereas approximately 15% are malignant.

Rabdomyoma and fibroma are the most common benign tumours, while sarcoma and lymphoma are the most frequent malignant tumours. Symptoms vary and depend on the size and location of the tumour. Diagnosis is made using imaging such as transthoracic or transoesophageal ultrasound, and nuclear magnetic resonance. Surgical treatment has a good outcome.

We present the case of a 14-year-old teenager, with a history of a heart murmur diagnosed at the age of 8. This was asymptomatic until he reached the age of 14, when he presented acute symptoms of dyspnoea and precordial pain. A large intracardiac mass was found on transthoracic echocardiogram that was affecting electrical conduction through infiltration of the AV node creating a Mobitz II 2 nd degree AV block. A primary intracardiac fibroma was confirmed by heart biopsy.

Palabras clave : Cardiac tumour; Atrioventricular block; Paediatrics.

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