Clinicopathological analysis of small intestinal metastasis from extra-abdominal/extra-pelvic malignancy

Table 1 Clinical data of patients with small intestinal metastasis of extra-abdominal/extra-pelvic malignancy

Patient	Sex	Primary tumor	Treatment method for primary tumor	Age at diagnosis of primary tumor (year)	Complication of metastasis to other systems	History of other tumors	Family history	Age at diagnosis of small intestinal metastasis (year)	Duration (months)	Clinical symptom	Site of small intestinal metastasis	Nature of metastatic cancer in the small intestine	Management of secondary small intestinal lesions	Follow-up	Overall survival (months)
1	Male	Lung cancer (poorly differentiated non-small cell cancer)	Surgery + chemotherapy	72	No	Gingival squamous cell carcinoma in 2006	No	73	7	Hematochezia	Jejunum (about 20 cm from Treitz ligament)	Intestinal metastasis of lung adenocarcinoma	Surgery	Death	11
2	Male	Lung cancer (poorly to moderately differentiated squamous cell carcinoma)	Chemotherapy + immunotherapy	65	No	No	No	65	0	Abdominal pain and obstruction	Ileum	Metastatic squamous cell carcinoma	Surgery	Survival	9
3	Male	Non-Hodgkin’s follicular lymphoma of the thyroid	Surgery + chemotherapy	59	No	No	Bladder cancer of his father	59	0	No obvious symptoms	Ileum	Metastasis of non-Hodgkin’s lymphoma	Surgery	Survival	42
4	Male	Malignant melanoma of the lumbar region	Surgery + chemotherapy	54	No	No	No	57	36	Abdominal pain and obstruction	Jejunum (100 cm from pylorus)	Metastatic malignant melanoma	Tissue biopsy under the endoscope + chemotherapy	Death	38
5	Male	Testicular cancer (chorionic epithelioma)	Chemotherapy	49	No	No	No	49	0	Hematochezia	Jejunum (120 cm from pylorus)	Metastasis of choriocarcinoma in germ cell tumors	Surgery	Survival	5
6	Male	Lung cancer (squamous cell carcinoma)	Radiotherapy + chemotherapy	50	Mediastinal lymph node metastasis of lung cancer	No	No	53	26	Hematochezia	Jejunum (60 cm from Treitz ligament)	Metastasis of lung squamous cell carcinoma	Surgery	Death	32
7	Male	Lung cancer (poorly to moderately differentiated small cell cancer)	Untreated	56	Metastasis to mediastinal lymph node, chest wall, abdominal cavity, and retroperitoneum	No	No	56	0	Hematochezia	Jejunum-ileum junction	/	Untreated	Death	0.3
8	Male	Lung cancer (poorly differentiated non-small cell cancer)	Radiotherapy	75	No	No	No	75	4	Abdominal pain and obstruction	Terminal ileum	Long metastasis of lung adenocarcinoma	Tissue biopsy under the endoscope	Death	4
9	Male	Lung cancer (neuroendocrine cancer)	Surgery	71	Abdominal cavity, retroperitoneum, and mediastinum	No	No	73	14	Abdominal pain and obstruction	Terminal ileum	Metastasis of cell neuroendocrine cancer	Surgery	Death	18
10	Female	Lung cancer (large cell cancer)	Targeted therapy + radiotherapy	49	No	No	No	50	13	Abdominal pain and hematochezia	Jejunum (180 cm from pylorus)	Metastasis of lung cell cancer	Tissue biopsy under the endoscope + surgery	Death	21
11	Female	Lung cancer (poorly differentiated non-small cell cancer)	Targeted therapy	37	Metastasis to bone, mediastinum, and abdominal wall	No	No	37	9	No obvious symptoms	Jejunum (120 cm from pylorus)	Metastasis of lung adenocarcinoma	Targeted therapy	Death	15