| Collagenous colitis |
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The
endoscopic picture of a collagenous colitis usually shows
a normal mucosa.
Only rarely a ring- like erythema is to be found. Biopsy
establishes the diagnosis
by showing a submucous collagen band.
Unexplained (watery) diarrhea should always prompt
multiple (deep) biopsies
from all parts of the colon. In our clinic we see about
2-3 newly diagnosed
patients per year. Etiology of this disease is mostly
unkown, chronic intake of
NSAID is discussed to be causative.
See also
Differential diagnosis of colitis.
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| Collagenous colitis after diclofenac |
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Slight inflammatory changes with erythema and rarefication of cecal vessels.
Histology reveals a submucosal band of collagen. The patient is known to be on diclophenac
for arthrotic complaints since many years.
See also
Differential diagnosis of colitis.
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