CHANG-MU CHENHONG-SHIEE LAIDuh Y.-C.2020-03-162020-03-1619951011-6788https://www.scopus.com/inward/record.uri?eid=2-s2.0-0028884908&partnerID=40&md5=798cb8a00612a40d8bea6c151d65528ahttps://scholars.lib.ntu.edu.tw/handle/123456789/476297The case numbers of neonatal ovarian cyst are increasing in diagnosis with routine use of ultrasound in prenatal monitoring. This is considered to be a self-limiting disease. The necessity of surgical intervention is either for a complication or for treatment of complicated cysts. A complicated cyst is cystic with a fluid-debris level, retracting clot, septating with or without internal echoes or solid. A simple cyst is completely anecheoic, and the cyst wall is completely imperceptible with sonography. For simple cysts, expectant follow-up for spontaneous resolution is adequate. For a larger simple cyst, sonography-guided aspiration is desirable. Surgery is indicated for every complex cyst to rule out true neoplasms. Here a case of an enlarging neonatal ovarian cyst, containing septum and internal debris is presented. A minilaparotomy for ovarian cystectomy was performed. Better cosmetic results, earlier postoperative feeding, shorter hospital stay and less intraperitoneal adhesion made this new technique a promising treatment modality for neonatal ovarian cystectomy in selected cases.[SDGs]SDG3article; case report; human; laparotomy; newborn; ovary cyst; prenatal diagnosis; surgical technique; ultrasoundjournal article2-s2.0-0028884908