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Ulcerative Colitis Collection

Ulcerative colitis: A chronic inflammatory bowel disease characterized by the presence of ulcers and pus-filled sores in the large intestine

Background imageUlcerative Colitis Collection: Ulcerative pancolitis C018 / 0928

Ulcerative pancolitis C018 / 0928
Ulcerative pancolitis. Endoscope view of the appendix aperture in the caecum (start of the large intestine) of an 11 year old patient with ulcerative pancolitis showing inflamed mucosa

Background imageUlcerative Colitis Collection: Ulcerative colitis, endoscopic view C016 / 8313

Ulcerative colitis, endoscopic view C016 / 8313
Ulcerative colitis. Endoscopic view of the interior of a patients distal colon (large intestine) affected by ulcerative colitis (UC), showing ulceration (white areas)

Background imageUlcerative Colitis Collection: Ulcerative colitis, endoscopic view C016 / 8312

Ulcerative colitis, endoscopic view C016 / 8312
Ulcerative colitis. Endoscopic view of the interior of a patients distal colon (large intestine) affected by ulcerative colitis (UC), showing ulceration (white areas)

Background imageUlcerative Colitis Collection: Ulcerative colitis, endoscopic view C016 / 8310

Ulcerative colitis, endoscopic view C016 / 8310
Ulcerative colitis. Endoscopic view of the interior of a patients colon (large intestine) affected by ulcerative colitis (UC), showing ulceration (white areas)

Background imageUlcerative Colitis Collection: Ulcerative colitis, endoscopic view C016 / 8309

Ulcerative colitis, endoscopic view C016 / 8309
Ulcerative colitis. Endoscopic view of the interior of a patients colon (large intestine) affected by ulcerative colitis (UC), showing ulceration (white areas)

Background imageUlcerative Colitis Collection: Ulcerative colitis, endoscopic view C016 / 8306

Ulcerative colitis, endoscopic view C016 / 8306
Ulcerative colitis. Endoscopic view of the interior of a patients distal colon (large intestine) affected by ulcerative colitis (UC), showing ulceration (white areas)

Background imageUlcerative Colitis Collection: Samuel Wilks, British physician C013 / 7701

Samuel Wilks, British physician C013 / 7701
Samuel Wilks (1824-1911). 19th Century portrait by Leslie Ward ( Spy ) of the British physician and biographer Samuel Wilks

Background imageUlcerative Colitis Collection: Ulcerative colitis, SEM

Ulcerative colitis, SEM
Ulcerative colitis. Coloured scanning electron micrograph (SEM) of freeze-fractured bowel tissue from a patient suffering from ulcerative colitis



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Ulcerative colitis: A chronic inflammatory bowel disease characterized by the presence of ulcers and pus-filled sores in the large intestine, as depicted in these endoscopic views (C016 / 8310, 8312, 13, 18, and 8306). Samuel Wilks, a British physician, first described this condition in the late 19th century. The disease can affect the entire colon (pancolitis, C018 / 0928), causing abdominal pain, diarrhea, and weight loss. At the microscopic level, ulcerative colitis is marked by an inflammatory infiltrate, crypt architectural distortion, and glandular hypertrophy (SEM).