TABLE 3.

Distribution of Sites of Origin for Metastatic Malignancies and Primary Tumor Diagnoses

Metastatic Malignancies	No. (%)	Primary Tumors	No. (%)
Site of origin		Benign	22 (59.5)
Lung	83 (30.6)	Cortical adenoma	11 (29.7)
GU tract (kidney, ureter, bladder, prostate, urethra, and testis)	44 (16.2)	Pheochromocytoma	4 (10.8)
GI and hepatobiliary tract	25 (9.1)	Schwannoma	3 (8.1)
Hematopoietic	16 (5.9)	Myelolipoma	2 (5.4)
Melanoma	12 (4.4)	Ganglioneuroma	1 (2.7)
Müllerian tract (ovary, fallopian tube, endometrium, and cervix)	7 (2.6)	Cavernous hemangioma	1 (2.7)
Breast	4 (1.5)	Malignant	15 (40.5)
Other	3 (1.1)	Cortical carcinoma	12 (3.2)
Metastatic carcinoma, not otherwise specified	77 (28.4)	Neuroblastoma	2 (5.4)
		Primary small blue round cell tumor	1 (2.7)

Abbreviations: GI, gastrointestinal; GU, genitourinary.