Mesothelial cyst of the liver in a neonate.
Mesothelial cysts are very rare congenital cystic lesions that are derived from coelomic remnants. We report a neonate with a mesothelial cyst of hepatic origin. On routine antenatal ultrasound study, an intra-abdominal mass was seen. After birth, the cystic lesion's size increased to 8 cm and became symptomatic. Surgical resection was performed. Preoperative diagnostic imaging studies, including CT and MRI, did not identify the etiology, but the cyst appeared to be of hepatic origin. Intra-operatively, the cystic lesion was confirmed to have originated from the liver. Based on immunohistological analysis, the final diagnosis was mesothelial cyst of the liver.
Komori
Koji
K
Department of Pediatric Surgery, Keio University, School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 1608582, Japan.
Hoshino
Ken
K
Shirai
Junichi
J
Morikawa
Yasuhide
Y
D005260:Female; D005865:Gestational Age; D006801:Humans; D007150:Immunohistochemistry; D007231:Infant, Newborn; D008113:Liver Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D008279:Magnetic Resonance Imaging; D018261:Mesothelioma, Cystic / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D010534:Peritoneal Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D011247:Pregnancy; D016896:Treatment Outcome; D016216:Ultrasonography, Prenatal