LONG-TERM RESULTS OF SURGICAL TREATMENT FOR ADRENOCORTICAL CANCER

Background: Adrenocortical cancer (ACC) is a rare adrenal neoplasm with aggressive clinical course and poor prognosis, and with many unresolved problems of diagnostics, treatment and predictive factors. Aim: To identify the most significant clinical and morphological predictors of the outcome based on assessment of long-term results of surgical treatment of ACC patients. Materials and methods: This retrospective study included data on diagnosis and results of treatment of 73 ACC patients from 1999 to 2015. Results: Radical surgery was performed in 59 patients, and long-term results assessed in 52 of them (maximal duration of the follow-up was 12 years). The most favorable treatment results were seen in stages I and II of the disease, with a 5-year survival rate of 87%. The 5-year overall survival in patients with ACC stage III was significantly (p=0.042, multiple comparisons) lower (48%). Two patients who had been operated with ACC stage IV (adrenalectomy with excision of a solid liver metastasis and atypical lung resection) died of progressive tumor within 13 months after surgery. The survival rates in patients with stage III of the tumor were evaluated depending on the main clinical characteristics of the tumor. It was shown that the 5-year overall survival in non-functioning adrenocortical carcinomas was 59%, being significantly (p