Gastrointestinal metastasis secondary to invasive lobular carcinoma of the breast: A case report

Figure 1 Variation trends of the tumor marker CA15-3. The X-axis starts at the point when CA15-3 was first detected above the normal range (July 2017) (CA15-3 normal range, 0.0–25.0 U/mL).

Figure 2 Endoscopic images of gastrointestinal metastasis of breast cancer. The patient's colonoscopy was performed in another hospital, and the colonoscopy images could not be obtained. A: Endoscopic images of gastric metastasis; B: Duodenal metastasis; C: Ileocecal metastasis; and D: Descending colon metastasis of breast cancer in different patients at our hospital are shown below.