Page 90 - Fluorescence-guided cancer surgery
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Chapter 6
on the right arm, but no other abnormalities. Laboratory evaluation showed a normetanephrine level of 3227 umol/mol creatinine (norm. value 64 - 260) in the urine.
CT scan showed a 46 x 38 mm retroperitoneal mass, just caudal to the aortic bifurcation (Figure 1). Cranial to this, a smaller lesion of 6 mm was seen, which was characterized as a para-aortic lymph node. MRI scan con rmed the retroperitoneal mass just caudal to the aortic bifurcation, with features suspicious for a paraganglioma. A slight encasement of the common iliac vein was seen. The cranially located smaller lesion was not clearly identi ed by MRI.
Figure 1. Preoperative imaging of paraganglioma
Preoperative CT, T2 weighed MRI and MIBG scan of the paraganglioma (dashed circle), retroperitoneal located, just caudal to the aortic bifurcation.
