Tumor intracardiaco en paciente adolescente / Intracardiac tumour in a teenage patient

Resumen Son raros los reportes de tumores intracardiacos en Pediatría; los benignos constituyen el 80% de las neoplasias cardiacas primarias, mientras que los malignos corresponden aproximadamente al 15%. Dentro del grupo de tumores benignos, el rabdomioma y el fibroma son los más frecuentes, en tanto que los sarcomas y el linfoma son los principales tumores malignos. La sintomatología es variable y depende del tamaño y localización del tumor. El diagnóstico se realiza por medio de imágenes como el ecocardiograma transtorácico o transesofágico y la resonancia magnética nuclear; el tratamiento quirúrgico tiene buen resultado. Se expone el caso de un adolescente de 14 años, con antecedente de soplo cardiaco diagnosticado a la edad de 8 años, asintomático hasta a la edad de 14 años, momento en el cual presentó cuadro agudo de disnea y dolor precordial. En ecocardiograma transtorácico se encontró masa intracardiaca de gran tamaño, que afectaba la conducción eléctrica por infiltración del nodo AV generando bloqueo AV de IIgrado, Mobitz II. Por medio de biopsia cardiaca se confirmó fibroma intracardiaco primario.

Abstract 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.

Reversible Pulmonary Hypertension in Adolescent with Left Atrial Myxoma

We report a patient of left atrial huge myxoma presenting with severe pulmonary hypertension in adolescents. A patient was a 14-year-old boy presented with sudden onset dyspnea. Transthoracic echocardiographic study revealed the presence of a nodular, 4.34 x 8.11 cm sized, mobile, hyperechoic mass in the left atrium and severe pulmonary hypertension with tricuspid insufficiency. After surgical therapy, tricuspid regurgitation and pulmonary hypertension was decreased and the patient was stabilized and had an uneventful clinical course.