Atlas of Gastroenterological Endoscopy
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Pseudomembraneous colitis
Pseudomembraneous colitis Pseudomembraneous colitis
Severe pseudomembranous colitis secondary to treatment with ceftriaxon (right) and clindamycin (left). In both patients the colon is affected up to the middle of the transverse colon. The mucous membrane is covered with a typical pseudomembrane and vulnerable to manipulation. Clostridium difficile-toxin is recovered from the stool.
Sonography in pseudomembraneous colitis A pseudomembraneous colitis might present clinically as acute abdomen in sometimes severely febrile patients. Ultrasound shows thickened, hypodense sometimes even lumenless intestinal walls, caused by the inflammation but also by the peudomembranes themselves. Since the disease is mainly localized in the sigmoid colon, in most cases the sigmoid can be followed sonographically down into the lesser pelvis, in other cases the whole colon can be followed up to the cecum. The picture shows the transverse colon.
Move the mouse´s arrow onto the image to colour the colon.
Pseudomembraneous colitis of unkown origin
Pseudomembraneous colitis Moderate changes in pseudomembraneous colitis. The cause remains unknown, since Clostridium toxin, Klebsiella oxytoca or other enteropathogenous germs are all negative in the stool culture. See also Differential diagnosis of colitis.