• Sorin Vamesu, Oana Andreea Ursica, Serban Eduard Milea, Mariana Deacu, Mariana Aschie, Anca Florentina Mitroi, Felix Voinea, Mihaela Butcaru Pundiche, Cristian Ionut Orasanu, and Raluca Ioana Voda.
• Clinical Service of Pathology, Departments of Pathology, "Sf. Apostol Andrei" Emergency County Hospital, 900591 Constanta, Romania.
• Medicina (Kaunas). 2024 Jul 12; 60 (7).

AbstractBackground and Objectives: Renal cell carcinomas and upper tract urothelial carcinomas are types of malignancies that originate in the kidneys. Each of these examples shows an increasing trend in the frequency and the mortality rate. This study aims to comprehensively define carcinomas by analyzing clinical, paraclinical, and histological aspects to predict aggressiveness and mortality. Materials and Methods: We conducted a retrospective investigation on a group of patients suspected of kidney cancers. Results: We identified 188 cases. We observed a higher mortality rate and older age in individuals with urothelial carcinomas. Anemia, acute kidney injury, hematuria, and perineural invasion were the main risk factors that predicted their mortality. Tumor size in renal cell carcinomas correlates with the presence of necrosis and sarcomatoid areas. Factors that indicate a higher rate of death are older age, exceeding the renal capsule, a lesion that includes the entire kidney, lymphovascular invasion, acute kidney injury, and anemia. Conclusions: Even if they originate at the renal level, and the clinical-paraclinical picture is similar, the histopathological characteristics make the difference. In addition, to these are added the previously mentioned common parameters that can represent important prognostic factors. In conclusion, the characteristics commonly identified in one type of cancer may act as risk factors for the other tumor. The detected data include threshold values and risk factors, making a significant contribution to the existing literature.

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