The Efficacy of Fetal Ultrasonography and Postnatal Abdominal Ultrasonography for the Diagnosis of Neonatal Abdominal Mass

Lee, Hee Eun; Kim, Ee Kyung; Kim, Hee Seok; Lee, Yun Kyoung; Park, Chan Hwu; Park, Kyung Ran; Park, June Dong; Kim, Beyong Il; Kim, Woong Heum; Choi, Jung Hwan; Park, Gui Won; Choi, Hwang; Choi, Yong; Yun, Chong Ku

Original Article

Journal of the Korean Pediatric Society 1998;41(3):299-306.
Published online March 15, 1998.

The Efficacy of Fetal Ultrasonography and Postnatal Abdominal Ultrasonography for the Diagnosis of Neonatal Abdominal Mass

Hee Eun Lee¹, Ee Kyung Kim¹, Hee Seok Kim¹, Yun Kyoung Lee¹, Chan Hwu Park¹, Kyung Ran Park¹, June Dong Park¹, Beyong Il Kim¹, Woong Heum Kim¹, Jung Hwan Choi¹, Gui Won Park², Hwang Choi³, Yong Choi¹, Chong Ku Yun¹

¹Departments of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
²Departments of Pediatric Surgery, Seoul National University College of Medicine, Seoul, Korea
³Departments of Urology, Seoul National University College of Medicine, Seoul, Korea

신생아 복부 종괴의 진단에 있어서 산전 태아 초음파검사 및 출생후 복부 초음파검사의 유용성

이희은^¹^, 김이경^¹^, 김희석^¹^, 이윤경^¹^, 박찬후^¹^, 박경란^¹^, 박준동^¹^, 김병일^¹^, 김웅흠^¹^, 최중환^¹^, 박귀원^²^, 최황^³^, 최용^¹^, 윤종구^¹

^¹서울대학교 의과대학 소아과학교실
^²서울대학교 의과대학 외과학교실
^³서울대학교 의과대학 비뇨기과학교실

Correspondence:
Hee Eun Lee, Email: 1

Abstract

Purpose
: Most neonatal abdominal masses are benign in nature, but early detection and management is important to avoid the development of complications. So, we studied the causes of neonatal abdominal masses and the efficacy of ultrasonography for early detection and diagnosis.
Methods
: We reviewed 36 newborn infants with abdominal masses who had been admitted to the nursery and Neonatal Intensive Cave Unit of Seoul National University Children's Hospital from Jan. 1, 1989 to Dec. 31, 1995.
Results
: The mean gestational age was 38 weeks and the male to female ratio was 22 : 14. All masses were benign and the most common etiology was hydronephrosis(41.7%). The following etiologies were multicystic dysplastic kidney, polycystic kidney, ovarian cyst, hemangioendothelioma, teratoma, meconium peritonitis, mesenteric cyst and intestinal duplication cyst. All except one were detected before the first 48hours, and among them, 32 cases(88.9%) detected antenatally. All patients except one who died shortly after birth, were examined by abdominal ultrasonography, and 31 of 35 masses(88.6%) had the same diagnosis of ultrasonography. Five cases had associated abnormalities in the opposite kidney and other organs.
Conclusion
: The most common etiology of neonatal abdominal masses was hydronephrosis and majority of masses originated from genitourinary system. Most abdominal masses were detected antenatally and abdominal ultrasonography was an efficient method for the diagnosis of neonatal abdominal masses.

Key Words: Fetal ultrasonography, Postnatal abdominal ultrasonography, Neonatal abdominal mass