A Clinicopathological Study on String-stricture Type of Obstructing Carcinomas of the Colon and Rectum

Tohru Nakagoe, Tetsuya Satoh, Hiroshi Ishikawa, Kousei Miyashita, Ryouji Takahira, Hiroyuki Kusano, Teruhisa Shimizu, Tatsuo Hirano, Takatoshi Shimoyama, Toshio Miura, Masao Tomita

The First Department of Surgery, Nagasaki University School of Medicine

To elucidate the clinical characteristics of the so-called "string-stricture type" of obstructing carcinoma of the colon and rectum, which looks as if the bowel had been deeply constricted by a string tied tightly around it 22 cases of string-stricture carcinomas were clnico-pathologically compared with 19 cases of non-string-stricture type. String-stricture carcinomas demonstrated the following characteristic features: (1) short duration of symptoms. (2) high rate (63.6%) of emergency surgery. (3) high incidence in the left colon, especially the sigmoid colon (50.0%). (4) relatively short longitudinal diameter and growth to the transverse axis. (5) absence of histopathological features. (6) a high rate of Dukes' group C and D (68.2%), and nuclear DNA aneuploidy (78.6%). (7) poor prognosis (5-year suvival for the curative cases was 15.4%).

Key words
string-stricture type of colorectal carcinoma, obstructing carcinoma, nuclear DNA contents

Reprint requests
Tohru Nakagoe The First Department of Surgery, Nagasaki University, School of Medicine
7-1 Sakamoto-machi, Nagasaki, 852 JAPAN

Accepted
April 11, 1990

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