Surgically treated primary malignant tumor of small bowel: A clinical analysis

Table 1 Clinical symptoms and signs of PMTSB patients

Symptoms	n (%)
Abdominal pain	95 (67.4)
Abdominal mass	44 (31.2)
Bowel obstruction	34 (24.1)
Hemotochezia	30 (21.3)
Jaundice	23 (16.3)
Fever	20 (14.2)
Bowel perforation coexistent peritonitis	8 (5.7)
Gastrointestinal bleeding and coexistent Shock	7 (5.0)
Intraabdominal bleeding	2 (1.4)

Others symptoms: Loss of appetite, diarrhea, anemia and loss of bodyweight. PMTSB: Primary malignant tumor of small bowel.

Table 2 Histopathological type of PMTSB (n = 141)

Histopathological type	n (%)
Adenocarcinoma	61 (43.3)
GIST	28 (19.8)
Carcinoid	17 (12.1)
Malignant lymphoma	14 (9.9)
Leiomyosarcoma	10 (7.1)
Malignant melanoma	6 (4.3)
Malignant neurilemmoma	3 (2.1)
Fibrosarcoma	2 (1.4)

GIST: Gastrointestinal stromal tumor.

Table 3 Surgical procedure for PMTSB patients

Procedure	n (%)
Operative intervention
Emergent procedure	31 (22.0)
Elective procedure	110 (78.0)
Disease for emergent procedure
Bowel obstruction	24 (77.4)
Gastrointestinal bleeding	4 (12.9)
Bowel perforation	3 (9.6)
Surgical procedure
Segmental bowel resection	92 (65.3)
Right hemi-colectomy	15 (10.6)
Pancreaticoduodenectomy	10 (7.1)
Gastric bypass	13 (9.2)
Biopsy at laparotomy	5 (3.6)
Feeding jejunostomy	2 (1.4)
Biliary bypass	2 (1.4)
Enteric bypass	2 (1.4)
Radicality of procedure
Radical1	104 (73.8)
Palliative2	37 (26.2)

¹Radical resection: Negative margin, resection of all gross diseases, en bloc local resection when indicated;

²Palliative resection: Positive margin, gross residual disease.

Table 4 Complications after operation

Complications	n (%)
Pancreatic anastomotic leak	7 (5.0)
Wound infection	6 (4.3)
Prolonged gastric emptying	3 (2.1)
Subphrenic abscess	3 (2.1)
Gastrointestinal bleeding	2 (1.4)
Total	21 (14.9)

Table 5 Survival rate of PMTSB patients n (%)

Histopathological type	Loss of follow-up cases (n)	1-yr survival rate	3-yr survival rate	5-yr survival rate
Adenocarcinoma (n = 61)	4	42 (73.7)	12 (21.0)	9 (15.8)
GIST (n = 28)	3	20 (80.0)	18 (72.0)	9 (36.0)
Carcinoid (n = 17)	2	15 (100.0)	12 (80.0)	7 (46.7)
Lymphoma (n = 14)	1	9 (9.25)	4 (30.8)	0
Other tumors(n = 21)	11	3 cases of leiomyosarcoma survived (15, 39 and 71 mo, respectively) and 1 case of malignant melanoma survived 18 mo