- Bozok Tıp Dergisi
- Vol: 13 Issue: 2
- THE ROLE OF PET CT IN CANCER OF UNKNOWN PRIMARY Primeri Bilinmeyen Kanserlerde PET BT'nin Rolü
THE ROLE OF PET CT IN CANCER OF UNKNOWN PRIMARY Primeri Bilinmeyen Kanserlerde PET BT'nin Rolü
Authors : Ozan Kandemir, Fadime Kandemir
Pages : 8-13
View : 43 | Download : 68
Publication Date : 2023-06-15
Article Type : Research Article
Abstract :ABSTRACT Objective: This study aimed to investigate the diagnostic value of positron emission tomography/computed tomography (PET/CT) in detecting the primary focus and in suspicious foci in patients who underwent PET/ CT with a pre-diagnosis of carcinoma of unknown primary. Material and Methods: In this retrospective study, a total of 49 patients who underwent PET/CT scan with a prediagnosis of carcinoma of the unknown primary between 2015 and 2019, and whose clinical follow-up and histopathological data were available, were included. PET/CT study was performed in 20 (40%) patients after the metastatic lesion was detected as a result of pathology, and in 29 (60%) patients due to clinical findings and imaging methods and suspicion of malignancy. The histopathological and clinical evaluation of the patients before PET/CT and the primary surgery, histopathological examinations and clinical follow-ups after PET/CT were examined. The success of PET/CT in detecting primary lesions and evaluating suspicious lesions in metastatic cases was analyzed. Results: Seventeen (34.7%) of the patients were female and 32 (65.3%) were male. A primary malignant tumor was detected in 34 (85%) of 40 patients with PET/CT. Regional distribution in patients with primary cancer focus; 9 pancreases, 9 lungs, 4 livers, 3 urothelial, 2 thyroids, 1 vertebra, 1 breast, 1 ovary, 1 esophagus, 1 prostate, 1 iliac bone, 1 skin, 1 stomach and 1 colon. In the follow-up of 6 cases whose primary could not be determined; Cervical cancer was detected in 1, ovarian cancer in 1, and the primary focus could not be detected in the clinical follow-up of 4 metastatic patients. Conclusion: PET/CT is highly successful in detecting cancers whose primary is unknown. Therefore, PET/CT is a diagnostic imaging method for the detection of the primary in cancer patients whose primary is unknown.Keywords : THE ROLE OF PET CT IN CANCER OF UNKNOWN, PRIMARY, Primeri Bilinmeyen Kanserlerde PET BT