https://orcid.org/0000-0001-6857-3516
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Qianqian Wang, Ying Zhao, Wenxu Liu, Jianfeng Shang, Yihua He, Roadblock in left ventricular outflow tract: a rare intracardiac blood cyst, European Heart Journal - Cardiovascular Imaging, Volume 26, Issue 4, April 2025, Page 770, https://doi.org/10.1093/ehjci/jeaf028
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Extract
A 34-year-old previously healthy man was incidentally found to have a mass in the left ventricular outflow tract (LVOT). At the time of discovery, he was asymptomatic, and no further management was undertaken. However, 10 days before admission, he began experiencing fatigue, chest tightness, and reduced exercise tolerance, prompting hospitalization for evaluation. On physical examination, a systolic murmur was noted in the precordial area. Electrocardiography findings were unremarkable. Transthoracic echocardiography (Panel A; See Supplementary data online, Videos S1 and S2) and transoesophageal echocardiography (Panels B and C; See Supplementary data online, Videos S3 and S4) revealed a cystic mass with internal septations and high tension in the LVOT, causing significant obstruction and increased forward flow velocity. The mass measured 36 × 21 mm and was attached to the A2 area of the mitral valve apex by a pedicle. Computed tomography angiography (Panel D) identified a low-density mass in the left ventricle, consistent with a benign lesion. Intraoperative findings confirmed the preoperative ultrasound diagnosis (Panel E), and the mass was completely excised. The patient’s postoperative course was uneventful. Histopathological examination (Panel F) showed that the cyst consisted of blood vessels with varying wall thicknesses, and its lumen was filled with numerous red blood cells.
