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Echogenic Mass Lesion within the Main Pulmonary Artery in a Neonate

Neonatal Medicine 2020년 27권 2호 p.89 ~ 93
Jeong Lae-Eun, 나재윤, 허준, 강이석, 양지혁, 전태국, 송진영,
소속 상세정보
 ( Jeong Lae-Eun ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Pediatrics
나재윤 ( Na Jae-Yoon ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Pediatrics
허준 ( Huh June ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Pediatrics
강이석 ( Kang I-Seok ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Pediatrics
양지혁 ( Yang Ji-Hyuk ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Thoracic and Cardiovascular Surgery
전태국 ( Jun Tae-Gook ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Thoracic and Cardiovascular Surgery
송진영 ( Song Jin-Young ) - Sungkyunkwan University School of Medicine Samsung Medical Center Department of Pediatrics

Abstract


Here we present a rare case of pulmonary arterial thrombosis associated with a ductus arteriosus aneurysm that caused severe pulmonary stenosis. A 5-day-old newborn was admitted to our hospital for the evaluation of an intracardiac mass-like lesion found after the detection of a cardiac murmur. Echocardiography and heart computed tomography revealed a mass-like lesion measuring 8.1 mm in diameter across the distal main pulmonary artery to the proximal left pulmonary artery resulting in localized severe stenosis of the left pulmonary artery. Left pulmonary artery angioplasty for surgical resection of the thrombus revealed that the mass was adherent to the proximal part of the left pulmonary artery anterior wall and extended to the ductus arteriosus. Histological examination of the mass showed an old thrombus with dystrophic calcification. Five months after surgery, follow-up echocardiography showed that the left pulmonary artery peak pressure gradient had decreased but the proximal left pulmonary artery stenosis remained. Cardiac catheterization and balloon angioplasty suc cessfully relieved the pulmonary stenosis.

키워드

Infant, newborn; Pulmonary artery; Ductus arteriosus

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