MediAI

  Keywords: Horseshoe kidney, renal cell carcinoma, RCC imaging, CT diagnosis, congenital renal anomaly, hematuria differential diagnosis, kidney cancer CT, abdominal radiology, genitourinary oncology, renal fusion anomaly Abstract Horseshoe kidney is the most common renal fusion anomaly, occurring in approximately 1 in 400 individuals. Although typically asymptomatic, it predisposes patients to multiple complications, including urinary tract infections, urolithiasis, obstruction, trauma susceptibility, and malignancy. Renal cell carcinoma (RCC) arising in a horseshoe kidney presents unique anatomical, surgical, and diagnostic challenges due to aberrant vascular supply and abnormal renal orientation. This comprehensive review integrates radiologic imaging findings, pathophysiology, epidemiology, clinical manifestations, diagnostic strategies, differential diagnosis, therapeutic approaches, and prognosis, based on the most recent high-impact literature. Detailed radiologic inte...

  Imaging Diagnosis, MRI Hallmarks, Differential Diagnosis, and Modern Treatment Clear cell renal cell carcinoma ( clear cell RCC, ccRCC ) is the most common malignant tumor of the kidney and a leading cause of cancer-related mortality in urologic oncology. In contemporary clinical practice, ccRCC is increasingly detected incidentally during imaging performed for unrelated indications—often before classic symptoms arise. This early detection has transformed the diagnostic workflow into an imaging-centered pathway, where radiologists and clinicians rely heavily on multiphasic CT and multiparametric MRI to characterize renal masses, stratify malignancy risk, and guide staging and treatment planning. In this column, I present a representative case of ccRCC discovered on surveillance imaging in an elderly former smoker, with subsequent MRI demonstrating hallmark features including heterogeneous T2 hyperintensity, signal drop on chemical shift imaging consistent with intracellular lipid...