Fig. 1
From: Intramural metastasis of T1 rectal cancer: report of a case report
a Colonoscopy revealed a primary rectal cancer (1), a submucosal tumor (2), and an adenomatous polyp (3). b Transrectal ultrasonography showed that the invasion depth of rectal cancer was the deep layer of the submucosa but not the muscularis propria. c Barium enema examination showed that a rectal cancer with an irregular surface (1), a submucosal tumor with a smooth surface (2), and an adenomatous polyp (3) are located at the anterior wall of the rectum. d MRI showed that the rectal cancer was located at the anterior wall of the rectum without invasion into the prostate