Renal anastomosing hemangioma following partial nephrectomy for renal cell carcinoma: A case report

Figure 1 Computed tomography images of anastomosing hemangioma in the left kidney. A: Conventional computed tomography (CT) revealed a low-density nodule (arrow) in the left kidney; B: Contrast-enhanced CT showed an unevenly enhanced nodule in the left kidney.

Figure 2 Magnetic resonance imaging images of the anastomosing hemangioma in the left kidney. A: A renal lesion (arrow) presented with high signal intensity on T2-weighted imaging; B: Arterial phase image of the left renal nodule (arrow) on contrast-enhanced magnetic resonance imaging (MRI); C: Venous phase image of the left renal nodule (arrow) on contrast-enhanced MRI; D: Delayed phase contrast-enhanced MRI image of the left renal nodule (arrow).

Figure 3 Ultrasonography images of the anastomosing hemangioma in the left kidney. A: Color doppler flow imaging finding of the renal lesion (arrow); B: Ultrasound image of the left renal nodule at the 19 second after the injection of contrast agent; C: Ultrasound image of the left renal nodule at 34 s after the injection of the contrast agent; D: Ultrasound image of the left renal nodule at 2 min and 34 s after the injection of contrast agent.

Figure 4 Pathological findings of the anastomosing hemangioma in the left kidney. A: Histopathological section (hematoxylin and eosin staining); B: Immunohistochemistry results showing the expression of CD31; C: Immunohistochemistry results showing the expression of CD34; D: Immunohistochemistry results showing the expression of Ki-67.