Table 2.

Comparison of cytological features in the retroperitoneal organs

Site	Background, blood clot	Amount of cellular material	Degeneration	Cell trauma	Maintenance of architectural/cellular arrangement	Average
Kidney (n=30)
FNC-NA	1.630 ± 0.556	1.060 ± 0.365	1.580 ± 0.648	1.360 ± 0.614	1.260 ± 0.520	6.530 ± 1.846
FNC-A	1.160 ± 0.580	1.260 ± 0.520	1.000 ± 0.574	1.300 ± 0.534	0.520 ± 0.210	5.090 ± 1.246
p-value	<.01	.09	.03	.31	<.01	<.01
Adrenal (n=4)
FNC-NA	1.00 ± 0.707	0.75 ± 0.830	1.020 ± 0.72	1.000 ± 0.707	0.980 ± 0.707	2.000 ± 1.590
FNC-A	0.75 ± 0.830	0.99 ± 0.810	0.680 ± 0.789	0.750 ± 0.830	0.980 ± 0.707	1.500 ± 1.660
p-value	.66	.69	.55	.25	>.99	.68
RPLN (n=12)
FNC-NA	1.33 ± 0.346	0.580 ± 0.3	1.200 ± 0.484	1.600 ± 0.648	0.916 ± 0.493	5.960 ± 2.780
FNC-A	0.916 ± 0.277	1.290 ± 0.62	1.023 ± 0.348	1.000 ± 0.578	0.916 ± 0.493	6.500 ± 2.160
p-value	<.01	<.01	.11	.03	>.99	.60
Miscellaneous (n=11)
FNC-NA	1.020 ± 0.417	0.660 ± 0.486	1.020 ± 0.417	1.020 ± 0.319	0.630 ± 0.298	6.360 ± 1.846
FNC-A	0.59 ± 0.298	1.000 ± 0.574	0.590 ± 0.312	0.520 ± 0.312	0.997 ± 0.660	5.090 ± 1.246
p-value	<.01	.13	.04	.001	.05	.07
Total (n=57)
FNC-NA	1.105 ± 0.325	1.139 ± 0.464	1.233 ± 0.426	1.267 ± 0.455	1.067 ± 0.456	5.833 ± 1.403
FNC-A	1.102 ± 0.425	1.161 ± 0.611	0.911 ± 0.339	0.642 ± 0.321	1.170 ± 0.488	4.884 ± 1.146
p-value	.26	.82	<.01	<.01	.15	<.01

FNC-NA, fine needle cytology with non-aspiration; FNC-A, fine needle cytology with aspiration; RPLN, retroperitoneal lymph node.