© 2022, Yuzuncu Yil Universitesi Tip Fakultesi. All rights reserved.To investigate the cases of pulmonary thromboembolism (PTE) and to analyze the risk factors in patients undergoing gynecologic oncology operations. Material and methods: The medical records of all patients who underwent gynecologic oncology surgery from January 2015 to September 2022 were collected from the hospital’s database. Cases with the di agnosis of PTE were retrieved and analyzed retrospectively. Dokuz cases of clinically apparent PTE were identified in the medical records. The mean age of the patients was 56.1 ±3.4. The mean BMI was 27.2±1.4. The majority of the cases were advanced stage ovarian malignancy who underwent a major surgery including pelvic-paraaortic lymphadenectomy (5/9). Dyspnea and shortness of breath was the main complaint. Tachypnea was the main finding in all cases. The leukocytosis and the thrombocytosis were notable in PTE cases. PTE remains as one of the fatal complications after gynecologic surgeries. In our case-cohort, increasing age, obesity and the complexity of surgery are significant predictors of pulmonary embolism in gynecologic oncology operations. Further multicenter studies stratifying risk factors are warranted to reach a proper prophylactic strategy and prevent PTE.