Table 1.

Clinical and pathologic features in four cases of retroperitoneal composite pheochromocytoma

Age/Sex	Clinical Features	Syndrome	Tumor Size(cm)	Histopathology	Outcome	Reference(country)
48/M	NA	NA	NA	PH-GN	NA	Yoshimi et al.(5),1992(Japan)
41/F	Hypertension,palpitation,headache, retroperitoneal mass	None	4.4 × 4 × 2	PH-GN	Asymptomatic and tumorfree for one year	Tohme et al.(4),2006(USA)
63/F	retroperitoneal mass	None	6.5 × 5 × 3	PA-GN	Tumorfree for 18 months after surgery	Hirasaki et al.(6),2009(Japan)
50/M	retroperitoneal mass	None	4.5 × 4 × 2.5	PA-GN	Tumorfree and in good condition for over 36 months	Jing et al.(7),2010(China)

NA, not available; PH, pheochromocytoma; GN, ganglioneuroma; PA, paraganglioma.