Diagnostic accuracy and safety of endoscopic ultrasound-guided fine needle biopsy for evaluating mediastinal pathologies

Table 2 Diagnostic modalities including endoscopic ultrasonography details, n (%)

Variables	Total (n = 77)
Initial diagnostic modality
CT scan	61 (79.2)
PET CT	16 (20.8)
Indication of EUS based on initial diagnostic findings
Mediastinal lymphadenopathy	28 (36.4)
Mediastinal lymphadenopathy with esophageal/gastric/duodenal lesion	8 (10.4)
Mediastinal lymphadenopathy with liver deposit/gall bladder/pancreatic mass	15 (19.5)
Mediastinal and hilar lymphadenopathy/with liver deposits/pulmonary nodules	17 (22.1)
Para-aortic lymphadenopathy/with esophageal lesion	4 (5.2)
Porta hepatis lymphadenopathy/with breast/gastric/duodenal lesion	5 (6.5)
Characteristics of lymph nodes/Lesion/mass
Size of lymph node1, mean ± SD	1.9 ± 0.8 (range: 0.7-3.6 cm)
Size of lesion/mass1, mean ± SD	5.9 ± 2.4 (range: 1.3 -9.4 cm)
EUS procedural duration1, mean ± SD	28.1 ± 18.9 minutes
Needle type
22G	74 (96.1)
25G	3 (3.9)
Number of “needle” passes, mean ± SD	2.1 ± 0.8
1	16 (20.8)
2	38 (49.4)
3	20 (26.0)
4	2 (2.6)
5	1 (1.3)
EUS diagnostic adequacy
Sufficient to conclude diagnosis	73 (94.8)
Not sufficient to conclude	4 (5.2)
EUS procedure-related complications
No	77 (100.0)

¹Percentages are presented in columns.

CT: Computed tomography; PET: Positron emission computed tomography; EUS: Endoscopic ultrasound.