Variabilidad de síntomas del mixoma cardíaco / Variability of Symptoms of Cardiac Myxoma

Introducción: De los tumores cardiacos primarios, más del 50 por ciento son mixomas. La variabilidad sintomática del mixoma cardiaco, puede llevar a confusiones diagnósticas. Objetivo: Presentar un caso donde se destaca la variabilidad de síntomas del mixoma cardíaco. Caso clínico: Paciente masculino de 51 años, atendido con manifestaciones de insuficiencia cardíaca, trastornos del ritmo cardíaco, micro embolias cerebrales, convulsiones tónico clónicas, hemoptisis, trastornos psiquiátricos, síndrome general con astenia, anorexia y pérdida de peso. Durante dos años, fue atendido en varias instituciones, con múltiples estudios y tratamientos. En el Servicio de Cardiología de Morón, Ciego de Ávila, mediante el estudio clínico y ecocardiográfico, se diagnosticó un tumor cardíaco. Se traslada al Cardiocentro de Santa Clara y allí se le extirpó el tumor. Histológicamente era un mixoma. Evolucionó muy bien, con excelente calidad de vida. Conclusiones: El mixoma cardíaco ocasiona síntomas obstructivos, embólicos y constitucionales, con cuadro clínico muy equívoco(AU)

Introduction: Of the primary cardiac tumors, more than 50 percent are myxomas. Symptomatic variability of cardiac myxoma can lead to diagnostic confusion. Objective: To present a case where the variability of cardiac myxoma symptoms is highlighted. Clinical case: A 51-year-old male patient, attended with manifestations of heart failure, heart rhythm disorders, micro cerebral embolisms, clonic tonic seizures, hemoptysis, psychiatric disorders, general syndrome with asthenia, anorexia and weight loss. For two years, he was treated in several institutions, with multiple analyses and treatments. In the Cardiology Department of Morón, Ciego de Ávila, through a clinical and echocardiographic study, a cardiac tumor was diagnosed. He moved to the Cardiocentro of Santa Clara and there, the tumor was removed. Histologically it was a myxoma. It evolved very well, with excellent quality of life. Conclusions: Cardiac myxoma causes obstructive, embolic and constitutional symptoms, with a very equivocal clinical picture(AU)

Infective Endocarditis of a Left Ventricular Myxoma in a Heroin User.

Infected cardiac myxomas are rare and can have disastrous sequelae; urgent surgical resection is typically indicated. We report the case of a 43-year-old user of intravenous heroin who presented with weakness and dyspnea. He was diagnosed with infective endocarditis of a myxoma attached to the left ventricular lateral wall. The patient underwent successful surgical resection of the myxoma and then completed 4 weeks of antibiotic therapy. In addition to discussing this patient's case, we briefly review the relevant medical literature, in which we found only 4 previous reports of left ventricular myxoma associated with infective endocarditis.

Cured from a Cardiac Myxoma? Brain Intraparenchymal Hemorrhage in a Patient with a 10-Year Successfully Resected Cardiac Myxoma.

BACKGROUND: A cardiac myxoma (CM) is the most common primary tumor of the heart. This case report highlights that for metastatic CMs, even after a successful total resection, there is a small but real risk of recurrence that can manifest as late as 10 years after initial tumor resection. CASE DESCRIPTION: We present the case of a 53-year-old woman who visited the emergency room after a 4-day worsening right-sided weakness. The patient was diagnosed with a left CM 10 years previously, and a complete surgical resection was performed at that time. A noncontrast computed tomography of the head revealed a left parietal hematoma and a contrast computed tomography scan of the head revealed an enlarged left parieto-occipital vein that was subsequently shown to be part of an arteriovenous fistula. After embolization of the fistula was performed, postprocedure magnetic resonance imaging of the brain showed redemonstration of acute intraparenchymal hemorrhage with vasogenic edema. The history of a previously resected CM and the multifocal distribution of brain lesions opened the possibility of slow-growing metastasis from the previous myxoma. CONCLUSIONS: Our case report demonstrates the metastatic nature of CMs to the central nervous system, even after successful gross total resection and no local relapsing mass in subsequent ultrasonographic follow-ups. A comprehensive evaluation on clinical and imagological grounds is mandatory to rule out the presence of myxomatous metastatic disease. Awareness and recognition of the potential neurologic manifestations of a metastatic CM will prevent unnecessary diagnostic workup and treatments.

Asymptomatic Left Ventricular Myxoma in a 12-Year-Old Male.

Cardiac myxoma is the most common cardiac tumor in patients of all ages; the majority are encountered as single left atrial tumors. Left ventricular myxomas are exceedingly rare, having been recorded in a small number of case reports involving children worldwide. We report a case of a left ventricular myxoma with left ventricular outflow tract obstruction in a previously healthy, asymptomatic adolescent black male. Transthoracic echocardiograms revealed a single, large (2.5 × 5-cm), lobulated, mobile mass within the left ventricular cavity that oscillated into the outflow tract, thereby causing moderate obstruction during systole. Advanced images delineated the location and tissue composition of the mass, characterizing it as a myxoma. Complete surgical excision of the mass was accomplished via aortotomy. Gross examination and histology confirmed the diagnosis of myxoma.

Coronary Embolization from a Left Atrial Myxoma Containing Malignant Lymphoma Cells.

Systemic embolization from a primary cardiac tumor is a relatively frequent presentation. However, an acute myocardial infarction due to coronary embolization is rarely seen. We offer an unusual case of a 50-year-old man who presented with severe angina and was diagnosed with an inferolateral ST-segment-elevation myocardial infarction. Aside from otherwise healthy coronary arteries, his coronary angiogram revealed an acute occlusion of the first obtuse marginal branch, which was treated with balloon angioplasty. Because no residual plaque or dissection was found after the angioplasty, an embolic source was suspected. An echocardiogram then revealed a large mobile left atrial myxoma prolapsing into the left ventricle, so the patient underwent minimally invasive resection. Detailed pathologic examination of the myxoma revealed a concomitant high-grade B-cell lymphoma.

Left atrial myxoma causing coronary steal: an atypical cause of angina.

Cardiac myxomas are rare primary cardiac tumors that usually present with dyspnea or manifestations of systemic embolization. Coronary steal is a rare phenomenon of unbalanced blood flow that is seen primarily in patients who have undergone coronary artery bypass grafting and have subclavian artery stenosis. We report the case of a 72-year-old woman who presented with fatigue, weakness, and exertional chest heaviness and had abnormal results on a cardiac stress test. The results of coronary angiography showed no obstructive coronary artery disease but revealed a large intracardiac left atrial mass that was supplied by 2 anomalous coronary arteries. The patient underwent successful ligation of the anomalous coronary arteries and resection of the mass, which was histologically an atrial myxoma. The patient's symptoms resolved, and results of a repeat cardiac stress test were normal. To our knowledge, this is the first report of a highly vascularized atrial myxoma that caused coronary steal with objective evidence of ischemia, and with subsequent resolution after resection of the mass and ligation of the anomalous coronary arteries.