Laparoscopic Management of Abdominal Cystic Lymphangiomas in Pediatric Patients: A Review of Eight Cases in the Queen Fabiola Children’s University Hospital, Brussels

Objective: This study aimed to demonstrate the feasibility of laparoscopic-resection of the abdominal cystic lymphangiomas in Pediatric Surgery and describe the morbidity associated to this management in Queen fabiola children’s university hospital (HUDERF) in Brussels. Methods: We retrospectively conducted a study at the Pediatric Surgery Department of HUDERF, Brussels. The studied period was from January 1, 2014, to January 1, 2024; a span of 10 years. All patients with a confirmed diagnosis of cystic lymphangiomas and who underwent laparoscopic surgery were included in our study. Those who have been operated exclusively by open surgery have been excluded. The technique involved either total laparoscopic resection or laparoscopic-assisted with extra-abdominal resection of the tumor. Parameters that were studied included age, sex, weight, symptoms, preoperative diagnosis, imaging assessment, location, size of the tumor, type of mass, surgical procedure, duration of the surgery, conversion to open surgery, morbidity, and histopathology. Data were analyzed using Microsoft Office Excel 2010 and SPSS. Results: We retrieved 10 files of patients presenting with abdominal cystic lymphangiomas within two patients underwent exclusive open surgery and have excluded from our study. Then our sample was constituted with 8 patients. The mean age of the patients was 6.4 years (standard deviation: 3.6 years, range: 1 to 11 years). Male patients were predominant. The mean weight was 26.7 kg (standard deviation: 14.7 kg, range: 10 to 55 kg). The most common symptom was abdominal pain. Preoperative diagnosis of abdominal cystic lymphangioma was made in 8 cases. Abdominal ultrasound was performed in all patients. MRI was done in 5 patients, and CT scan in 2 patients. All patients presented a multicystic mass. Pure laparoscopic resection of the cyst was done in 2 cases. Laparoscopic-assisted resection in 4 cases (with extra-peritoneal with small bowel resection and mesenteric detorsion in 1 case), and conversion in 2 cases due to the complex location of the cyst. After a follow-up period of 5 years, morbidity was noted in one patient (Patient 3) who developed postoperative bowel obstruction 1 month post-surgery. This patient was re-operated on with a favorable clinical outcome following conventional small bowel resection and anastomosis. The other patients (1, 2, 4, 5, 6, 7 and 8) had a simple clinical course, and no recurrence was observed in our series. Conclusion: Laparoscopic-resection of the abdominal