A Case of Early Stage Bladder Carcinosarcoma in Late Recurrence of Urothelial Carcinoma after Transurethral Resection

<div>Histopathology of the tumor. (a) Hematoxylin-eosin stain. The epithelial part of the tumor consists of high-grade urothelial carcinoma and the mesenchymal part is composed of oval to spindle shaped cells proliferation. (b) Immunohistochemical staining indicates CK-7 positive. (c) Immunohistochemical staining shows<svg height="6.1673pt" id="M3" style="vertical-align:-0.2063904pt" version="1.1" viewbox="-0.0498162 -5.96091 11.8695 6.1673" width="11.8695pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,4.358,0)"><path d="M545 106L524 126C493 85 467 65 455 65C438 65 427 113 405 238C448 295 498 362 543 439L533 448L478 435C453 386 423 331 398 295H395C370 404 347 448 282 448C169 448 23 309 23 153C23 54 65 -12 128 -12C203 -12 283 70 339 155H341C360 29 380 -12 411 -12C444 -12 491 11 545 106ZM333 204C265 95 210 54 169 54C137 54 113 96 113 171C113 302 191 405 252 405C301 405 318 306 333 204Z" id="g113-223"></path></g></svg>-smooth muscle actin positive. (d) Immunohistochemical staining reveals vimentin positive.</div>

Case Reports in Urology

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Figure 3

Figure 3: A Case of Early Stage Bladder Carcinosarcoma in Late Recurrence of Urothelial Carcinoma after Transurethral Resection 