RESUMO
Thyrotoxic periodic paralysis (TPP) is a rare but potentially life-threatening entity, which is characterized by sudden onset of muscle weakness and can in exceptional cases be associated with more severe symptoms, such as severe hypokalemia. We present the rare case of a young patient presenting with monomorphic ventricular tachycardia secondary to hypokalemia due to TPP. This case report highlights the importance of recognition of TPP as a rare cause of VT. A high index of suspicion is needed since signs of hyperthyroidism may be subtle. However, early diagnosis is crucial in order to avoid cardiovascular complications and improve outcomes.
Assuntos
Hipertireoidismo , Hipopotassemia , Taquicardia Ventricular , Eletrocardiografia , Humanos , Hipertireoidismo/complicações , Hipertireoidismo/diagnóstico , Hipopotassemia/complicações , Hipopotassemia/diagnóstico , Paralisia , Potássio , Taquicardia Ventricular/diagnóstico , Taquicardia Ventricular/etiologiaRESUMO
In this rare case of intrahepatic cholangiocarcinoma (ICC) tumor thrombus with right atrial (RA) invasion, we describe its diagnostic workup based on cardiac magnetic resonance imaging (cMRI). An 85-year-old man underwent transthoracic echocardiography due to dyspnea, revealing a RA mass. Comprehensive cMRI evaluation, including cine bright blood, T1- and T2-weighed, fat-suppressed, and contrast-enhanced imaging, was performed and diagnosis of ICC tumor thrombus with RA invasion was made. This first description of cMRI-guided diagnosis of RA invasion by ICC tumor thrombus points out the usefulness of cMRI for the diagnostic approach of RA masses suggestive of tumor thrombus.