Abstract
A one-month-old male infant who was prenatally suspected of having meconium peritonitis was referred to our department, and we diagnosed him as having polycystic intralymphatic lymphangioma on examination. There were no problems in terms of the infant’s general condition or feeding at the time of admission, and there was also no abdominal distension; thus, the infant was allowed to return home and was followed up as an outpatient. At the age of 52 days, he was urgently admitted to the hospital with abdominal distension, fever, and poor feeding. Cystic puncture was performed as an emergency evacuation procedure because of respiratory distress. After his general condition improved, lymphangioma was resected at the age of 70 days. Lymphatic malformation was found to develop from the sigmoid colon and have progressed to the pelvic retroperitoneum; therefore, the involved sigmoid colon was also excised. Fetal detection of lymphatic malformation is relatively rare, and it is necessary to distinguish it from fecal peritonitis. However, after birth, it is important to identify the site of development and determine the timing of surgery, considering the risk of infection.
