Pediatric testicular masses are rare pathologies. Many physicians, facing such masses for the first time, have trouble choosing the algorithm of assessment and surgical treatment tactics. Extent of surgery and surgical approach depend directly on preoperative assessment results. The clinical case of the incident testicular mass surgical treatment in a 15-year-old boy is reported. The patient underwent laboratory and instrumental examination, the results of which confirmed a benign lesion. Based on the data obtained, the organ-sparing surgical approach was selected. An assessment algorithm, treatment tactics for testicular mass based on the data obtained, advisability and safety of the organ-sparing treatment approach are reported.