Oral Presentation - 22
Surgical approach to the lung metastasis of childhood tumors
Rahşan Özcan 1, Ayşe Karagöz 1, Ebru Gökdemir 2, Pınar Kendigelen 3, Tiraje Celkan 4, İbrahim Adaletli 5, Osman Faruk Şenyüz 1, Gonca Topuzlu Tekant 1
1 Istanbul University Cerrahpasa Medical Faculty Department of Pediatric Surgery
2 İstanbul University, Cerrahpasa Medical Faculty
3 Istanbul University Cerrahpasa Medical Faculty Department of Anesthesiology
4 Istanbul University Cerrahpasa Medical Faculty, Department of Pediatric Haemotology and Oncology
5 Istanbul University Cerrahpasa Medical Faculty, Department of Radiology
Aim: To evaluate the surgical approach regarding the lung metastasis of childhood tumors.Cases and method: Cases with tumor metastasİs that underwent surgical intervention between years 1978-2016 were investigated retrospectively. The determinants were age, gender, primary diagnosis, date of lung metastasİs occurance, surgical treatment method, pathological diagnosis and follow-up.Results: Of the 18 cases which were operated due to lung metastasİs 11 were female, 7 were male. Median age was 8,1 years (range 1,5-14 years). The primary tumors were; Wilm’s tumor (n:9), Ewing sarcoma (n:3), osteosarcoma (n:2), hepatoblastoma (n:1), fibrosarcoma (n:1), rhabdomyosarcoma(n:1) and endodermal sinus tumor (n:1). Lung metastasis were present at the initial diagnosis in 4 patients. Among the others, the average time for the occurance of metastasİs was 16,5 months ( range 7 mo-4yr). In all cases CT imaging was performed, findings were compatible with lung metastasis. In 4 patients Pet Scan was performed and showed positive uptake. Surgical approach was right thoracotomy for 9 patients, left thoracotomy for 7 and bilateral thoracotomy for 2 patients. Surgical procedures that were performed were; wedge resection in 16 patients, lobectomy in 1 patient and lobectomy with costal bone resection in another. Re-thoracotomies were performed in 3 cases with recurrent lung metastasis (2 Wilm’s tm and 1 hepatoblastoma).Pathological diagnosis was negative for tumor metastasis in 3 patients who had CT imaging indicative of the disease, with one of them aslo showing uptake on PET scans.Average time of chest tube removal was 5,2 days (range 3-8 ) while average lenght of hospital stay was 7,3 days (range 5-10 days). During follow-up, 6 cases resulted in mortatily.Conclusion: In patients with childhood tumors, lung metastasis can be encountered at the initial diagosis and/or during follow-up. From the surgical point of view, limited resection is considered to be adequate. Although radiological imaging supports tumor metastasis, definitive diagnosis should be made via pathological evaluation.