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1.
Most bladder tumors arise from the urothelium. However, there are several uncommon but significant malignant bladder lesions that must be differentiated from urothelial carcinomas and from benign lesions of the bladder. The second half of this two-part review will describe rare nonurothelial malignant tumors of the urinary bladder including leiomyosarcoma, rhabdomyosarcoma, angiosarcoma, malignant fibrous histiocytoma (undifferentiated sarcoma), primitive neuroectodermal tumor, malignant peripheral nerve sheath tumor, hemangiopericytoma, and alveolar soft-parts sarcoma. Common clinical presentations, morphologic characteristics, and immunohistochemical features are described to aid the practicing pathologist in the identification of these entities. Because the distinction between malignant and benign lesions has significant therapeutic and prognostic implications, key factors for differentiating them are presented. 相似文献
2.
Inflammatory myofibroblastic tumour of the urinary bladder: the role of immunoglobulin G4 and the comparison of two immunohistochemical antibodies and fluorescence in‐situ hybridization for the detection of anaplastic lymphoma kinase alterations
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Euna Choi Sean R Williamson Rodolfo Montironi Shaobo Zhang Mingsheng Wang John N Eble David J Grignon Antonio Lopez‐Beltran Muhammad T Idrees Lee Ann Baldridge Marina Scarpelli Carol L Jones Lisha Wang Gregory T MacLennan Adeboye O Osunkoya Liang Cheng 《Histopathology》2015,67(1):20-38