Background Mutations of AT‐rich interactive domain 1 (ARID1A) have been associated with a worse outcome after intravesical treatment with bacille Calmette‐Guérin in patients with non–muscle‐invasive bladder cancer (NMIBC). Loss of ARID1A protein expression in urine cytology may serve as an indication of an ARID1A mutation. Therefore, the authors examined the expression of ARID1A in urine cytology and histological specimens of bladder cancer for correlation with ARID1A mutational status. Methods...
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Abstract Cercariform cells are slender cells with a bulbous end and a unipolar long cytoplasmic process, resembling Schistosoma cercariae. Since their first description in urothelial carcinoma, multiple studies have attempted to explore their utility in distinguishing metastatic urothelial carcinoma from other common malignant neoplasms, such as adenocarcinoma and squamous‐cell carcinoma. Although not pathognomonic, they are most commonly encountered in urothelial carcinoma, but they can also be...
Abstract Small‐cell neuroendocrine carcinoma (NEC) of the endometrium is extremely rare, and demonstrates an aggressive clinical course. Since reports describing its cytological features are scarce, we aimed to retrospectively analyze these features. Patients with a histopathological diagnosis of NEC who underwent preoperative cytological examination, were enrolled in this study. The cytological features including the background, arrangement, and shape of the neoplastic cells, and the nuclear and...
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