Papillotubular carcinoma with an invasive micropapillary carcinoma component of the breast, characterized by a rapid increase in size due to intra-tumoral hemorrhage: A case report.

Introduction: Rapidly enlarging mammary tumors, including invasive breast tumors, are clinically rare. Invasive micropapillary carcinoma (IMPC) of the breast is known to have aggressive behavior and poor clinical course compared to invasive ductal carcinoma.

Case Presentation: An 87-year-old woman presented with a rapidly enlarging tumor of the right breast over the course of 3 weeks.

[A case of sigmoid colon cancer with multiple liver metastases responding to S-1].

A 74-year-old woman was referred to our hospital with complaints of constipation and abdominal distention caused by a sigmoid colon tumor. After examination, she was diagnosed as sigmoid colon cancer with multiple liver metastases. To prevent bowel obstruction, a sigmoid colon resection was performed.

[A case of primary cancer of the small intestine].

We experienced the case that used S-1 for small intestinal cancer with peritoneal dissemination. A 51-year-old man admitted for fatigability and anemia. Small bowel series showed a stenosis lesion at the 15cm anal side from Treiz ligament, and the oral intestinal dilatasion was shown.