INTRODUCTION: Because of technological development and easier accessibility to diagnostic imaging, incidentally detected adrenal tumors are a frequently diagnosed endocrine disorder. The aim of the paper was to present the characteristics of patients with newly incidentally detected adrenal tumors, with emphasis on the detected hormonal disorders. MATERIAL AND METHODS: A retrospective, single center study included 96 patients hospitalized due to newly detected adrenal tumor between 2007 and 2014. RESULTS: Adrenal tumors were detected in 92 patients. The final diagnoses were: incidentaloma – 73 (76%), nodular adrenal hyperplasia – 12 (12.5%), pheochromocytoma – 5 (5.2%), late-onset congenital adrenal hyperplasia – 5 (5.2%), Conn’s syndrome –...