大腸早期未分化癌の1例 [in Japanese] A CASE OF EARLY UNDIFFERENTIATED CARCINOMA OF THE COLON [in Japanese]
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A 73-year-old woman was admitted to our hospital for further evaluation because she had tested positive for fecal occult blood. A protruding lesion was detected in the ascending colon by colonoscopy and examination of the tumor biopsy specimen showed the tumor corresponded to an undifferentiated carcinoma. Laparoscopic assisted right hemicolectomy was performed under the diagnosis of ascending colon cancer. The tumor was polypoid with a slight central depression and 10×10mm in size. Pathological findings showed the tumor consisted of abnormal cells without gland formation and mucin production. Immunohistochemically, the tumor was positive for EMA and keratin but negative for chromogranin A and synaptophysin. The tumor invaded the colon well up to the submucosa. Therefore we diagnosed for patient as warring had an undifferentiated carcinoma. We report this rare case of early undifferentiated carcinoma of the colon with a review of the literature.
- The journal of the Japanese Practical Surgeon Society
The journal of the Japanese Practical Surgeon Society 69(7), 1721-1724, 2008-07-25
Japan Surgical Association