​"Lung metastasis happens in about 1.5 percent of cases, according to a 2022 study in the journal Frontiers in Oncology.

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Sometimes, endometrial cancer returns after remission, which is a period without any signs of cancer. This return is called recurrence. In a study of 90 people with endometrial cancer recurrence, the lungs were the first site of recurrence in 31 cases (34.4 percent). Among those, 20 cases (64.5 percent) were isolated to the lungs, while 11 cases (35.5 percent) involved metastasis to other organs as well."