Outcomes and prognostic factors in patients with synchronous and metachronous oligometastatic urothelial carcinoma with visceral metastases.

For mUC with visceral metastases, the timing of metastasis appearance was associated with prognosis, with synchronous metastases being a poorer prognostic factor compared to metachronous metastases. There was no prognostic difference between OMD and PMD with visceral metastases when classified into synchronous or metachronous metastases.