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CASE REPORT
Korean J Pediatr 2011 March;54(3) :133-136.
doi:https://doi.org/10.3345/kjp.2011.54.3.133
Misdiagnosis of fetus-in-fetu as meconium peritonitis
Yoon Joo Kim (Kim YJ), Se Hyung Sohn (Sohn SH), Ju Young Lee (Lee JY), Jin A Sohn (Sohn JA), Eun Hee Lee (Lee EH), Ee Kyung Kim (Kim EK), Chang Won Choi (Choi CW), Han Suk Kim (Kim HS), Beyong Il Kim (Kim BI), Jung Hwan Choi (Choi JH)
Department of Pediatrics, Seoul National University College of Medicine, Seoul, Korea
Corresponding Author: Jung Hwan Choi ,Tel: +82.2-2072-3630, Fax: +82.2-743-3455, Email: neona@plaza.snu.ac.kr
Copyright © 2011 by The Korean Pediatric Society
ABSTRACT
Fetus-in-fetu (FIF) is a rare congenital condition in which a fetiform mass is detected in the host abdomen and also in other sites such as the intracranium, thorax, head, and neck. This condition has been rarely reported in the literature. Herein, we report the case of a fetus presenting with abdominal cystic mass and ascites and prenatally diagnosed as meconium pseudocyst. Explorative laparotomy revealed an irregular fetiform mass in the retroperitoneum within a fluid-filled cyst. The mass contained intestinal tract, liver, pancreas, and finger. Fetal abdominal cystic mass has been identified in a broad spectrum of diseases. However, as in our case, FIF is often overlooked during differential diagnosis. FIF should also be differentiated from other conditions associated with fetal abdominal masses.
Keywords: Fetus in fetu | Meconium peritonitis | Misdiagnosis
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