Abstract：
Urothelial tumors characteristically occur in elderly persons, more commonly in males with typical complaints of hematuria. Although few studies attempted to describe clinic-pathological features of urothelial malignancies in young patients, due to heterogeneity in the inclusion of age groups under \"young patients\" no reliable conclusions can be derived. Herein, we are describing an interesting case of papillary urothelial neoplasm of low malignant potential with osseous metaplasia in a 19-year-old chronic smoker young patient presented with chief complaints of abdominal pain with a review of the literature.
摘要：
尿路上皮肿瘤特征性发生在老年人中，更常见于有典型血尿主诉的男性。尽管很少有研究试图描述年轻患者尿路上皮恶性肿瘤的临床病理特征，由于“年轻患者”下年龄组的异质性，无法得出可靠的结论。在这里，我们正在描述一个有趣的低恶性潜能乳头状尿路上皮肿瘤伴骨化生的病例，该病例是一名19岁的慢性吸烟者，主要主诉腹痛，并回顾了文献。
