Contrast-Enhanced Ultrasound Guided Biopsy of Undetermined Abdominal Lesions: A Multidisciplinary Decision-Making Approach

Table 3

Histological diagnoses of biopsies in US and CEUS groups.

Characteristic	US group; ( lesions)	CEUS group; ( lesions)
Malignant	58 (77.3%)	47 (78.3%)
Lymphoma	31	15
Malignant gastrointestinal stromal tumor	4	5
Liposarcoma	5	9
Synovial sarcoma	2	3
Ganglioneuroma	2	1
Seminoma	2	1
Mucinous adenocarcinoma	2	2
Leiomyosarcoma	2	3
Neuroendocrine carcinoma	3	4
Malignant mesothelioma	1	2
Metastatic adenocarcinoma	2	1
Renal clear cell carcinoma	2	1
Benign	12 (16.0%)	12 (20.0%)
Gastrointestinal stromal tumor	6	4
Solitary fibrous tumor	3	2
Schwannoma	1	3
Chronic inflammation	2	2
Hematoma	/	1
Inadequate specimen	5 (6.7%)	1 (1.7%)

US: conventional ultrasound; CEUS: contrast-enhanced ultrasound.