Urothelial Carcinoma of the Renal Pelvis with Synchronous Ipsilateral Collecting Duct Carcinoma: Two Case Reports.

Synchronous renal malignancies are seldom encountered or diagnosed post-renal resection. A combination of renal cell carcinoma (RCC) and urothelial carcinoma (UC) is most commonly reported. Typically, the RCC subtype is clear-cell RCC; however, a combination of collecting duct carcinoma (CDC) and UC has rarely been reported in the existing literature.

Imaging features of hyperacute intracerebral hemorrhage on multiple MRI sequences within 1 minute from onset during MRI examination: A case report.

Rationale: Acute stroke requires accurate imaging to ensure appropriate treatment decisions and favorable clinical outcomes. Computed tomography has long been used as an exclusive imaging technique to assess intracerebral hemorrhage, owing to its rapid scanning time and widespread availability. Several recent studies have reported the reliable detection of hyperacute hemorrhage using magnetic resonance imaging (MRI).

Aortic Arch Variants and Anomalies: Embryology, Imaging Findings, and Clinical Considerations.

There is a wide spectrum of congenital anomalies or variations of the aortic arch, ranging from non-symptomatic variations that are mostly detected incidentally to clinically symptomatic variations that cause severe respiratory distress or esophageal compression. Some of these may be accompanied by other congenital heart diseases or chromosomal anomalies. The widespread use of multidetector computed tomography (CT) in clinical practice has resulted in incidental detection of several variations of the aortic arch in adults.