It is not unusual for UrC to be con

It is not unusual for UrC to be confused with primary bladder dome tumors, though UrC exhibit distinct pathologic and clinical differences from bladder carcinomas [68]. Most bladder carcinomas are urothelial carcinoma and present as non-invasive papillary urothelial carcinomas that do not invade the muscular wall [68,69]. In contrast, the majority of UrC are adenocarcinomas that usually produce abundant extracellular mucin and exhibit focal signet ring cell features. Also, UrC frequently involves the muscularis propria and perivesical soft tissues, possess a sharp delineation from the bladder surface urothelium, and lack papillary urothelial carcinoma or urothelial carcinoma in situ [68,69]. Further, UrC develop at a relatively younger age compared to bladder carcinomas, with less male predominance. Although the prognosis of UrC is poor, urachal neoplasms tend to have a better prognosis relative to bladder urothelial carcinoma of similar stages [68,69].The risk factors for UrC, specifically urachal adenocarcinomas, remain unclear. Patients with urachal tumors typically experience poor outcomes [[67], [68], [69]]. The extraperitoneal location allows for neoplasm to remain quiescent, perpetuating delays in symptoms. Naturally, this causes delays in UrC diagnosis until the tumor cells become symptomatic at more advanced stages [5]. Table 1 summarizes the two prevailing staging systems used grading urachal cancers.

結果 (繁體中文) 1:

It is not unusual for UrC to be confused with primary bladder dome tumors, though UrC exhibit distinct pathologic and clinical differences from bladder carcinomas [68]. Most bladder carcinomas are urothelial carcinoma and present as non-invasive papillary urothelial carcinomas that do not invade the muscular wall [68,69]. In contrast, the majority of UrC are adenocarcinomas that usually produce abundant extracellular mucin and exhibit focal signet ring cell features. Also, UrC frequently involves the muscularis propria and perivesical soft tissues, possess a sharp delineation from the bladder surface urothelium, and lack papillary urothelial carcinoma or urothelial carcinoma in situ [68,69]. Further, UrC develop at a relatively younger age compared to bladder carcinomas, with less male predominance. Although the prognosis of UrC is poor, urachal neoplasms tend to have a better prognosis relative to bladder urothelial carcinoma of similar stages [68,69].

風險因素URC，尤其是臍尿管腺癌，目前仍不清楚。患者臍尿管腫瘤通常會經歷不良後果[67]，[68]，[69]]。腹膜外位置允許腫瘤保持靜止，症狀延續延遲。自然地，這將導致在URC延誤診斷直至腫瘤細胞在更晚期階段[5]成為症狀。表1總結了兩種流行的分級系統中使用的分級臍尿管癌症。

結果 (繁體中文) 2:

Glabrous ยกเว้นสำหรับการยิงหนุ่มสาวและดอกไม้ที่มีค่อนข้างเนียนปิดสีขาวเป็นสีเทาหรือน้อยมักจะเป็นสีน้ำตาลที่มีความหนาแน่นน้อยลงในส่วน distal ของโคโรลลา

結果 (繁體中文) 3:

UrC與原發性膀胱穹隆腫瘤混淆並不罕見，儘管UrC與膀胱癌有明顯的病理和臨床差异[68]。大多數膀胱癌是尿路上皮癌，表現為不侵犯肌壁的非浸潤性乳頭狀尿路上皮癌[68,69]。相反，大部分的UrC是腺癌，通常產生豐富的細胞外粘蛋白，並表現出局灶性印戒細胞特徵。此外，UrC經常累及固有肌層和膀胱周圍軟組織，與膀胱表面的尿路上皮有明顯的界限，並且缺乏乳頭狀尿路上皮癌或原位尿路上皮癌[68,69]。此外，與膀胱癌相比，UrC的發生年齡相對較低，男性佔優勢較少。儘管臍尿管癌的預後較差，但臍尿管腫瘤的預後往往比類似階段的膀胱尿路上皮癌好[68,69]。
UrC的危險因素，特別是臍尿管腺癌，仍不清楚。臍尿管腫瘤的患者通常預後較差[67]，[68]，[69]。腹膜外的位置允許腫瘤保持靜止，使症狀持續延遲。當然，這會導致UrC診斷延遲，直到腫瘤細胞在更晚期出現症狀為止[5]。錶1總結了兩種常用的臍尿管癌分級分期系統。