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Two Cases of Left Ventricular Tumors Complicating Subaortic Stenosis in Newborn Infants

Journal of the Korean Pediatric Society 2000;43(8):1122-1126.
Published online August 15, 2000.
Two Cases of Left Ventricular Tumors Complicating Subaortic Stenosis in Newborn Infants
Ji Seon Kang, Mi Jung Hwang, Tae Hyoung Cho, Byung Ju Kim, Young Jong Woo, Jae Sook Ma
Department of Pediatrics, Chonnam National University Medical School, Kwangju, Korea
신생아에서 좌심실 종양에 의해 초래된 대동맥판하부 협착 2례
강지선, 황미정, 조태형, 김병주, 우영종, 마재숙
전남대학교 의과대학 소아과학교실
Abstract
The most common obstruction of left ventricular outflow in childhood is produced either by a fibrous ring below the aortic valve, or by localized or diffuse muscular hypertrophy of the interventricular septum. Cardiac tumors causing subaortic stenosis in the newborn infant are extremely rare. This report describes two cases of subaortic stenosis caused by a tumor of the left ventricle in newborn infants, both diagnosed by 2-dimensional echocardiography. In one patient, the obstructive portion of the tumor was successfully resected from its attachment to the ventricular septum by aortotomy on day 5. Histologic examination confirmed the diagnosis of rhabdomyoma. This patient developed cutaneous, neurologic and radiologic abnormalities of tuberous sclerosis during the follow-up of 42 months.
Key Words: Heart, Rhabdomyoma, Subaortic stenosis, Tuberous sclerosis


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