Poster - 93
From prediction to precision: Characterization of prenatally diagnosed abdominal cysts to guide optimal surgical or conservative management
Muhammed Hamidullah Çakmak, Ayşenur Celayir, Olga Devrim Ayvaz, Sabri Cansaran, Serdar Moralıoğlu
University of Health Science, Zeynep Kamil Maternity and Children’s Diseases Health Training and Research Center, Department of Pediatric Surgery, İstanbul
Purpose: The prenatally diagnosis of intraabdominal cysts in newborns is relatively common. These cysts can be caused by a wide variety of conditions in newborns that may require surgical intervention or follow-up. The origin, size and symptoms of prenatally diagnosed abdominal cysts are important factors in the decision of surgical approach and incision site. The aim of this study was to determine the postnatal diagnosis, characteristics, outcomes and management of antenatally diagnosed intra-abdominal cysts.
Method: Hospital records of newborns with intraabdominal cysts who were prenatally diagnosed and treated at our department between 2008 and 2024 were retrospectively reviewed. Patients with urinary tract cysts or missing data were excluded from the study. Demographic data, cyst characteristics and progression, postnatal diagnosis and treatment approach, and final outcomes were analyzed.
Results: Intra-abdominal cysts were present in 115 (female:89, male:26) neonates diagnosed prenatally. The most common were ovarian cysts (n:70, 66.9%), intestinal duplication cysts (n:15, 13.0%), hepatobiliary cysts (n:14, 12.2%), meconium cyst (n:10, 8.7%), hidrocolpos (n:4, 3.8%), mesenteric cyst (n:1, 0.9%), sacrococcygeal teratoma (n:1, 0.9%).
Emergency postnatal surgical treatment was performed in 85 (73.9%) cases. Seventy percent of prenatally diagnosed ovarian cysts underwent surgery in the postnatal period. There were eight misdiagnosed pathologies, and the most frequently misdiagnosed pathologies were intestinal duplication cysts (n:3). A neonate with an antenatal ovarian cyst was operated on with a prediagnosis of duplication cyst postnatally. Because the pathology reported a sacrococcygeal teratoma, a posterosagittal coccyx excision was also performed.
Conclusion: The postnatal course of prenatally diagnosed intra-abdominal cysts can be variable. In neonatal surgery, accurate identification of the origin of an abdominal cyst is essential for determining the optimal surgical incision. Therefore, it is important to evaluate and manage each case individually and use preoperative imaging when necessary.