Department of Pathology, Medical University of Warsaw, 5 Chałubińskiego St., Warsaw, Poland.
Ups J Med Sci. 2012 Mar;117(1):47-51. doi: 10.3109/03009734.2011.650797. Epub 2012 Jan 30.
Urothelial bladder carcinoma (UBC) is a very rare condition in patients aged below 50 years. The aim of the study was to answer the question whether the characteristics of cancer in this group of patients differ from general UBC features.
Altogether 2160 patients treated with primary transurethral resection due to a bladder tumor were included in the study. The mean age of the cohort was 69.1 years (range 11-100). Patients were divided into three subgroups depending on age: age <41 years (group 1), age 41-50 years (group 2), age >50 years (group 3). Sex ratio, tumor grade, and stage of disease were recorded.
Women constituted 18.5%, 19.2%, and 25.8% of the patients in groups 1, 2, and 3, respectively (P < 0.05). WHO grade 3 tumors were diagnosed in 0%, 8.5%, and 17.2%, respectively (P < 0.05). Non-invasive papillary carcinoma was found in 100.0%, 76.7%, and 62.7%, respectively (P < 0.05). The incidence of muscle-invasive bladder cancer was 0%, 11.0%, and 15.6%, respectively (P < 0.05).
Pathological characteristics of UBC are dependent on the patients' age. Being a very rare condition, UBC in young patients is characterized by a relatively good prognosis.
膀胱癌(UBC)在 50 岁以下的患者中非常罕见。本研究的目的是回答一个问题,即在这组患者中癌症的特征是否与一般 UBC 特征不同。
共纳入 2160 例因膀胱肿瘤接受经尿道膀胱肿瘤切除术的患者。队列的平均年龄为 69.1 岁(范围 11-100 岁)。根据年龄将患者分为三组:年龄<41 岁(第 1 组)、年龄 41-50 岁(第 2 组)、年龄>50 岁(第 3 组)。记录性别比例、肿瘤分级和疾病分期。
女性分别占第 1、2 和 3 组患者的 18.5%、19.2%和 25.8%(P<0.05)。第 1、2 和 3 组患者中分别诊断出 0%、8.5%和 17.2%的 WHO 分级 3 肿瘤(P<0.05)。分别发现 100.0%、76.7%和 62.7%的非浸润性乳头状癌(P<0.05)。肌肉浸润性膀胱癌的发生率分别为 0%、11.0%和 15.6%(P<0.05)。
UBC 的病理特征取决于患者的年龄。作为一种非常罕见的疾病,年轻患者的 UBC 具有相对较好的预后。