Left Atrial Intramural Hematoma after Removal of Atrial Myxoma: Cardiac Magnetic Resonance in the Differential Diagnosis of Intra-Cardiac Mass

Abstract

Left atrial (LA) dissection is a rare entity, which is, in most cases, observed after valvular intervention. Transesophageal echocardiography (TEE) is considered to be a modality of choice in the diagnosis of LA dissection. However, LA dissection might be missed clinically in the absence of significant hemodynamic changes, and moreover physicians are occasionally reluctant to perform TEE due to its semi-invasiveness. Recently, cardiac magnetic resonance (CMR) has been introduced as a modality to perform different roles to existing imaging modalities, such as echocardiography. Given that CMR can provide information on tissue characteristics, it may give incremental information to TEE. We here present a rare case of LA dissection following LA myxoma removal, where CMR can make a correct diagnosis and guide management strategy.

Astrocyte elevated gene-1 regulates CCL3/CCR5-induced epithelial-to-mesenchymal transition via Erk1/2 and Akt signaling in cardiac myxoma

“…Cardiac myxoma (CM) is mostly sporadic in heart diseases (1,2), and the clinical manifestation and long-term complications include the recurrence, sudden death, heart failure and potential coronary embolisms (3,4). Due to scarcity of studies indicating the molecular and signaling mechanisms in the CM development, it is very hard to realize the target therapy of CM.…”

Case of Left Atrium Intramural Hematoma After Percutaneous Coronary Intervention

“…Дифференциальный диагноз следует проводить с миксомой, эхинококкозом, тромбом ЛП, внешней компрессией ЛП за счет неопластических процессов или перикардиальных кист [7,10]. Возможности ЭхоКГ и ЧП-ЭхоКГ ограничены с точки зрения характеристики структуры и плотности выявленного образования [25,30]. Предшествующее оперативное вмешательство, наличие данных ЭхоКГ до операции, как это было в представленном нами случае, позволяет заподозрить ИГЛП.…”

“…Диагноз ИГЛП устанавливают с помощью визуализирующих методик ЭхоКГ, ЧП-ЭхоКГ, МСКТ с контрастированием, МРТ. В некоторых случаях при проведении МРТ для уточнения диагноза необходимо контрастирование гадолинием [1,10,25].…”

Evaluation of the potential predictors of embolism in patients with left atrial myxoma

“…1 Most left atrial myxomas arise from the interatrial septum and grow into the atrial cavity, but may also have multiple foci and involve valvular tissue. 3 Histopathological examination is necessary for the final diagnosis. 3 Histopathological examination is necessary for the final diagnosis.…”

“…2 The differential diagnosis of cardiac myxomas includes vegetations, thrombi, and other cardiac tumors. 3 Histopathological examination is necessary for the final diagnosis.…”