The seven following illustrations, in which Bismuth Paste was injected, did not meet my expectations in showing the pathological conditions that existed. The disappointment was largely due to a desire not to cause annoyance to my patients, who so kindly consented, in the interest of science, to being radiographed. In all cases the paste extended over a much greater area than a casual glance at the illustrations would indicate. The probes and paste were not inserted with the idea of making a diagnosis, but simply to suggest research on the subject by proctologists. All the cases radiographed suffered from proctitis, sigmoiditis, periproctitis, and perisigmoiditis. [Illustration: Fig. 1. Radiograph showing tube (1) in the rectum; 2, probe inserted 8-3/4 inches; probes 2 and 4 pass on left side of rectum; 3 and 5 pass on the right; all pass into perirectal spaces; three probes are seen under the integument.] [Illustration: Fig. 2. Radiograph showing tube (1) in the rectum; probes 2, 4, 6, passed on the left and front of the rectum; 3 passed forward; 5 under the integument along the spine; 7, 8, and 9 probes passed to scrotum and thigh.] [Illustration: Fig. 3. Radiograph showing a large region more or less filled with bismuth from the anal canal forward and upward, as indicated by lines 1 and 2; a severe case of proctitis, sigmoiditis, periproctitis, and perisigmoiditis.] [Illustration: Fig. 4. Radiograph showing a tube in the rectum and probe passed to the left of the rectum into the space where bismuth was injected; a case of acute proctitis, sigmoiditis, periproctitis, and perisigmoiditis at time of treatment.] [Illustration: Fig. 5. Radiograph showing bismuth in a perirectal channel on the left side of the anus and rectum, which caused continuous annoying pain for many months.] [Illustration: Fig. 6. Radiograph showing a long muco-cutaneous sac and perirectal channel into which bismuth was injected; a case of proctitis and periproctitis, etc.] [Illustration: Fig. 7. Radiograph showing a tube in the rectum, a long probe and bismuth in perirectal space, also a probe in a submucous channel; a case of sigmoiditis, proctitis, periproctitis, and perisigmoiditis.] [Illustration: Fig. 8. Radiograph showing bismuth injected in the perirectal space; a case of proctitis, sigmoiditis, periproctitis, and perisigmoiditis with severe constipation and indigestion.] [Illustration: Fig. 9. Radiograph showing tube in the rectum, a probe and bismuth in perirectal space, and also a probe in a submucous channel; a case of proctitis, sigmoiditis, periproctitis, and perisigmoiditis.] CHAPTER XXV. CHRONIC MUCOUS PROCTITIS AND SIGMOIDITIS--USUALLY DIAGNOSED AS CHRONIC MUCOUS COLITIS.