Abstract: Objective To summarize histopathological features and outcome of surgical treatment of primary cardiac tumors. Methods We analyzed retrospectively clinical records and tissue sections in 34 cases of primary cardiac tumors, who were treated with surgical resection in the First Hospital of Tsinghua University from 2003 to 2015. Results Thirty-four cases were found to have primary cardiac tumors, of whom 29 had benign tumor, the most common one was myxoma (in 20 cases) and 5 cases had malignant tumors. Their age ranged from 4 months to eighty-three years (mean age=37 years) and 17 of them were male, the other 17 were female. Conclusion Primary cardiac tumor is rare. Most patients were in adolescents. There are many types in primary cardiac tumors, and their morphologic structures are complex. Most of the tumors are myxoma. Effective treatment is a surgical resection of the tumors. The prognosis is mainly dependent on pathological type, growth characteristics and location.

Key words: primary cardiac tumors, pathological types, clinic