Fig. 2From: Retroperitoneal solitary neurofibroma mimicking lymph node metastasis of colon cancer: a case reportPreoperative CT findings. A CT scan showed a ring enhanced liver tumor (30 × 20 mm) in S3 liver lesion (white arrow). It was suspected a liver metastasis of sigmoid colon cancer. B CT scan showed an enlarged lymph node (10 × 10 mm) around abdominal aorta with contrast effect (black arrow). It was suspected a distant lymph node metastasisBack to article page