Role of double-balloon enteroscopy in malignant small bowel tumors

Table 1 Patient characteristics by histological type of malignant small bowel tumor

	GIST	Adenocarcinoma	Lymphoma	Neuroendocrine tumor
No. patients (% of MSBT)	8 (28.6%)	7 (25%)	4 (14.3%)	4 (14.3%)
Sex (M/F)	7/1	3/4	2/2	4/0
Mean age (SD) (yr)	64 ± 15	59 ± 16	48 ± 22	55 ± 24
Clinical presentation
Overt- obscure OGIB	4	1	1	1
Occult- obscure OGIB	3	3	2	2
Diarrhea	0	0	0	1
Occlusion syndrome	1	3	1	0
Duodenum/ jejunum/ ileum	0/7/1	0/6/1	0/3/1	0/0/4

MSBT: Malignant small bowel tumor; GIST: Gastrointestinal stromal tumor; OGIB: Obscure gastrointestinal bleeding.

Table 2 Final diagnosis and histological analysis by double balloon enteroscopy directed-biopsy

	DBE biopsy	Final diagnosis (% of MSBTs)
MSBT	20/25 (80%)	28
GIST	4/7 (57.1%)	8 (28.6%)
Adenocarcinoma	6/7 (85.7%)	7 (25%)
Lymphoma	4/4 (100%)	4 (14.3%)
Neuroendocrine tumor	2/3 (66.7%)	4 (14.3%)
Metastatic	3/3 (100%)	4 (14.3%)
Kaposi Sarcoma	1/1 (100%)	1 (3.6%)

DBE: Double balloon enteroscopy; MSBT: Malignant small bowel tumor; GIST: Gastrointestinal stromal tumor.