OBJECTIVES: The objectives of this study were to examine the number of sentinel lymph node scintigraphy in malignant melanoma performed at the Clinical Institute of Nuclear Medicine and Radiation Protection of KBC Osijek in the past 10 years, to calculate the percentage of scintigraphies in malignant melanoma of the trunk in the total number, to determine the connection between sex and age of patients and melanoma occurrence, examine drainage pathways depending on the location of the melanoma of the trunk and the number of detected lymph nodes. STUDY DESIGN: The research was conducted as a cross-sectional study with historical data. MATERIAL AND METHODS: The subjects of the research are patients of both sexes and all age groups suffering from malignant melanoma who underwent sentinel lymph node scintigraphy at the Clinical Institute of Nuclear Medicine and Radiation Protection at University Hospital Osijek in the past 10 years, from whose medical histories the data was collected. The collected data was age and sex of patients, total number of performed sentinel lymph node scintigraphy and the number performed in malignant melanoma of the trunk, the number and location of melanoma on the trunk, the number and location of sentinel lymph nodes. RESULTS: From the total number of subjects, 40 % underwent sentinel lymph node scintigraphy in trunk melanoma. 66,4 % are male and 33,6 % are female patients. The average age of the patients is 61.3±14.9 years. In most cases (82,2 %) malignant melanoma is located on the back, while in others on the abdomen and thorax. Regarding the melanoma drainage pathways, sentinel lymph nodes most commonly occur in the right or left axillary area or in both areas simultaneously. CONCLUSION: In all cases except one the sentinel lymph node was found. The analysis of the obtained data did not show a significant difference in the occurrence or localization of trunk melanoma regarding the sex and age of patients. In addition to that, no significant difference was observed either in the number or in the localization of sentinel lymph nodes according to the sex of the patients and the localization of melanoma.