Abstract
The case is a 37 years old male. Under the suspicion of rectal carcinoma, biopsy was taken. The examinations on this biopsy revealed the presence of lymphocytes, eosinophils, reticulocytes, marked fibrosis and formation of lymph-follicles centering in the submucosa tissue, suggesting so-called Crohn's disease. Otherwise, no picture of carcinomatization was recognized. The case was clearly proved to be rectal carcinoma. Histologically, in addition to the above findings, carcinomatized mucosa and mucosa partly substituted by carcinomatous cells were recognized. In view of the above findings, the case was considered to be a case of rectal carcinoma, which was induced by the preceding of Crohn's disease of rectum. Though any definite conclusion cannot be drawn due to lack of serial biopsies, the case should be regarded as a note-worthy case.
