Endoscopy Photos
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Three semilunar
folds, the "valves of
43 year old woman
with portal hypertension. Colonoscopy revealed rectal varices
Small polyp protruding from the mouth of a colonic diverticulum in
a 58 year-old woman undergoing colonoscopy for evaluation of occult bleeding.
The polyp was successfully excised with a snare wire using electrocautery,
without precipitation of bleeding and without perforation. The polyp proved to
be a tubular adenoma.
Small colonic diverticula.
diverticulosis
40
year-old woman with abdominal pain, fever and rectal
bleeding. Colonoscopy revealed focal diverticulitis: peridiverticular
inflammation with scant exudates
1
cm benign-appearing polyp on a short stalk, in a 61 year-old woman evaluated
for occult bleeding. The carcinoma was confined to the head of the polyp, and
was completely excised by polypectomy.
59
year-old man with rectal bleeding. Large smooth polyp on a broad stalk,
containing invasive adenocarcinoma
Proximal ascending colon lesion in a 78
year-old woman, with features similar to the lesion above (nodularity and
ulceration). Symptoms included abdominal pain and and wieght loss. At
surgery, the lesion was focally invasive into mesentery and lymph nodes. Biopsy
revealed this to be a large cell lymphoma.
83 year-old woman who had presented with constipation,
abdominal pain and a left-sided 
abdominal
mass. Colonoscopy revealed three neoplastic lesions, all of which proved to be
metastatic disease from previous breast carcinoma
Two
small, hypopigmented polypoid lesions seen at retroflexion in the rectum in a
71 year-old man undergoing routine colon screening. Histologically the lesions
were squamous papillomas, with mild to moderate dysplasia, and features
consistent with Human Papilloma Virus (HPV) infection
64 year-old woman undergoing colonoscopy for evaluation of a palpable rectal polyp and occult bleeding. During colonoscopy, retroflexion of the instrument in the rectum revealed a pale, tan polypoid lesion which appeared to be attached at its base to an internal hemorrhoid. The lesion was surgically excised, and histologically proved to be a benign fibroepithelial polyp arising from anorectal musoca
72
year-old woman who presented with abdominal pain,
bloody diarrhea and weight loss. She had been taking significant amounts of
nonsteroidal antiinflammatory agents (NSAIDs) for arthritis. Colonoscopy
revealed segmental mucosal inflammation with ulceration. Although grossly
similar in appearance to ischemic
colitis, the typical histological features of ischemic colitis (mucosal
necrosis, fibrosis of the lamina propria and crypt atrophy, and overlying
fibrinopurulent membrane) were not present on biopsy
24 year-old with bloody diarrhea. Sigmoidoscopy revealed
mucosal inflammation with erythema (redness), edema (swelling), granularity and
loss of the normal vascular pattern. Stool culture grew Salmonella. The gross
appearance resembles that of inflammatory
bowel disease.
Close-up of esophagogastric junction on
the right. Note transition in color from silver-red squamous mucosa to
red columnar epithelium.
Mucosal inflammation caused by reflux of gastric acid into
the esophagus. With 
increasing
severity, may be associated with erosions, ulceration and stricture formation.
68
year-old man with dysphagia (difficulty swallowing) to solids, and intermittent
odynophagia (pain with swallowing). Endoscopy revealed a circumferential distal
esophageal ulcer with associated tight stricture formation.
47
year-old woman with chronic pyrosis (heartburn).
Endoscopy demonstrated an irregular squamocolumnar junction, with bands of
metaplastic epithelium extending proximally
Adenocarcinoma arising in a segment of Barrett's esophagus; esophagogastric junction visible in the distance
Normal
mucosal folds ("rugae") in the gastric body.
35
year-old man with chronic dyspepsia and pyrosis poorly responsive to
proton-pump inhibitor and metoclopramide therapy. After endoscopy demonstrated
erosive antral gastritis, he admitted to regularly taking 15-20 ibuprofen
daily, as well as occasionally taking as many as 20 aspirin tablets daily.
65 year-old man who presented with abdominal pain and hematemesis. Abdominal exam was relatively benign, and abdominal xrays had not been suggestive of perforated viscus. Endoscopy revealed a chronically perforated gastric ulcer, through which the liver was visible
Normal postbulbar duodenum.
78 year-old man with abdominal pain, jaundice and fever. Two stones were extracted following papillotomy
vocal
cords
The
endoscope is occasionally passed inadvertently into the trachea rather than
into the esophagus, for example, in patients who have difficulty initiating the
act of swallowing. Tracheal rings will be evident, as will the bifurcation into
right and left mainstem bronchi
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