malignant mesenchymoma的用法和樣例：
例句
- The malignant mesenchymoma is not rare actully,but owing to the one sidedness of sampling,it is always diagnosed pathomorphogically as one singletissue sarcoma.
惡性間葉瘤並不少見，但由於病例取材局限，每把此腫瘤診斷成一種組織的肉瘤。 - Mesenchymal tumors of the urinary bladder are rare, and the majority of them are malignant.
摘要膀胱間葉瘤是罕見的，而且大多是惡性的。
