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

Figure 1 Computed tomography, surgical specimens and pathological images of small intestinal metastases from lung cancer. A: The lung computed tomography examination indicate postoperative changes in lung cancer; B: The abdominal computed tomography scan indicate a huge small intestine mass in the upper right abdomen; C: Ulcerative metastases are visible on small intestinal endoscopy; D: Intussusception and obstruction resulting from small intestinal metastases are detected by surgical specimen; E: Hematoxylin and eosin staining of small intestine metastatic tumor tissue (× 100); F: Hematoxylin and eosin staining of small intestine metastatic tumor tissue (× 400); G: Immunohistochemical staining of small intestine metastatic tumor tissue shows positive expression of Napsin A (× 100); H: Immunohistochemical staining of small intestine metastatic tumor tissue shows positive expression of thyroid transcription factor 1 (× 100).