Table 1.
Patients characteristics and endoscopic ultrasound findings n (%)
| Characteristics |
Diagnostic
(n = 85) |
Non-diagnostic (n = 9) | P value | |
| Benign (n = 60) | Malignant (n = 25) | |||
| Age (mean ± SD) | 67 ± 11 | 63 ± 14 | 0.161 | |
| 66 ± 12 | 66 ± 11 | 0.992 | ||
| Race | ||||
| White | 57 (95) | 25 (100) | 7 (78) | |
| African American | 3 (5) | 0 (0) | 2 (22) | |
| Hispanic | 0 (0) | 0 (0) | 0 (0) | |
| Gender | ≥ 0.993 | |||
| Male | 26 (27) | 19 (20) | 5 (5) | |
| Female | 34 (36) | 6 (7) | 4 (5) | |
| Adrenal biopsied | ≥ 0.994 | |||
| Left | 58 (61) | 23 (24) | 9 (10) | |
| Right | 2 (2) | 3 (3) | 0 (0) | |
| EUS image of adrenal | ||||
| Mass | 49 (52) | 25 (26) | 6 (6) | 0.145 |
| Diffuse enlargement | 11 (12) | 1 (1) | 3 (3) | 0.096 |
| Size by EUS, cm | ||||
| Mean ± SD | 3.4 ± 1.6 | 2.6 ± 1.2 | 0.0277 | |
| Mean ± SD | 2.8 ± 1.4 | 2.4 ± 1.2 | 0.418 | |
| Range | 0.7-5.2 | 1.3-7.0 | 1.0-4.0 | |
| Echogenicity | ||||
| Hypoechoic | 40 (42) | 22 (24) | 4 (4) | |
| Hyperechoic | 1 (1) | 0 (0) | 1 (1) | 0.149 |
| Not reported or unavailable | 19 (20) | 4 (4) | 4 (4) | |
| Number of FNA passes | ||||
| Mean ± SD | 3.0 ± 1.7 | 3.0 ± 1.3 | 3.1 ± 1.5 | 0.461 |
Mean age diagnostic vs non-diagnostic;
Diagnostic vs non-diagnostic cytology result based on gender;
Adrenal Gland FNA side and Diagnostic vs non-diagnostic cytology result;
Presence or absence of an adrenal mass and diagnostic vs non-diagnostic cytology result;
Presence of absence of an adrenal mass and benign vs malignant FNA cytology;
Median size by EUS (cm) and malignant vs benign FNA cytology;
Median size by EUS (cm) and Diagnostic vs non-diagnostic cytology;
Adrenal Echogenicity on EUS and Diagnostic vs non-diagnostic cytology;
Number of FNA passes; and Diagnostic vs non-diagnostic FNA; 10Mean age benign vs malignant. EUS: Endoscopic ultrasound; FNA: Fine-needle aspiration.