In non-EPP patients, there were 52 patients with metastasis of TETs to the diaphragm. Diaphragmatic resection was performed in 34 cases: 6 complete and 28 partial resections of the diaphragm (missing information on the extent of resection in 2 cases). There were 16 pleurectomies of the diaphragm without resection of the diaphragm.