27
Kidneys, Adrenals, and Retroperitoneum
Fig. 27.68 Retroperitoneal seminoma.
Loose cluster of cells and single
cells showing small amounts of basophilic cytoplasm and large round nuclei
with central nucleoli. Note background cytoplasmic debris composed of
glycogen and lipid droplets. Fine-needle aspirate (Papanicolaou x MP).
Fig. 27.69 Embryonal carcinoma.
Fine-needle aspirate shows a high-
grade malignant neoplasm composed of papillary groups of malignant
cells. (Bottom inset) mitotic figures (Papanicolaou x LP). (top inset) high
magnification of tumor cells with vesicular nuclei and prominent nucleoli
(Papanicolaou x MP).
Table 27.13
Accuracy of Fine-needle Aspiration Biopsy of Renal Masses Based on a Review of 922 Cases
Authors
No. of cases
sensitivity
specificity
Accuracy
Positive
predictive value
Negative
predictive value
Droese and coworkers166
17
70
100
NS
99
75
Porter and coworkers167
28
68
NS
66
NS
NS
Juul and coworkers12
301
NS
NS
82
93
71
Pilotti and coworkers18
132
93
96
NS
93
NS
Nosher and coworkers7
17
NS
NS
95
NS
NS
Jeans and coworkers4
oo
NS
NS
99
NS
NS
Sundaram168 and coworkers180
20
NS
NS
100
NS
NS
Orell and coworkers11
69
NS
NS
90
NS
NS
Suen155“
96
88
NS
92
100
NS
Dekmezian and coworkers17
155°
75
100
NS
100
NS
Total
922
79
99
89
99
73
NS, not stated.
“Predominantly cysts or hyperneph
Predominantly neoplasms.
rosis.
867
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