Bladder leiomyosarcoma is a unique mesenchymal tumour,accounting for less than 0.5% of all primary bladder malignancies.Bladder leiomyosarcoma used to be treated with radical surgeryin either old or young patients, often resulting in significantimpact on the patients’s quality of life after surgery. We reporton a case of bladder leiomyosarcoma in a 31-year-old femalewho was treated with partial cystectomy. Fortunately, no tumourmetastasis or relapse was observed during the 7-year follow-upperiod and the patient now has a good quality of life. We foundthat partial cystectomy may be an acceptable option to treat bladderleiomyosarcoma in the low MSKCC (Memorial Sloan-KetteringCancer Center) stage.
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