bladder

Q On a CT scan, a male patient is found to have enlarged lymph nodes along the abdominal aorta between the left renal hilum and the inferior mesenteric artery. Sites of malignancy that would commonly drain directly to these lymph nodes would NOT include the:

1. colon

2. left kidney

3. left testis

4. left renal pelvis

   1. bladder

These lumbar nodal chains are extraregional or secondary drainage sites for any metastatic process arising from the lower pelvis.