Figure 5From: Acute small bowel obstruction: a rare initial presentation for the metastasis of the large-cell carcinoma of the lungMicroscopic images of jejunum resection (a) hematoxylin-eosin staining, × 100 showing groups of large anaplastic tumor cells invading the lamina serosa; (b) immunoperoxidase × 400 showing CK7 cytoplasmic positivity on a jejunum resection tissue.Back to article page