sturge_weber
Forum Guru
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can someone tell the difference b/w pulsion and traction diverticula
is zenkers diverticula, a pulsion or a traction diverticula, or none of these???
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| sturge_weber
Forum Guru
Topics: 77
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i got it
posted on the web
Finally, acquired diverticula of the esophagus and hypopharynx also may be classified according to their pathogenesis as pulsion diverticula or traction diverticula. Pulsion diverticula form as a result of high intraluminal pressures against weaknesses in the GI tract wall. Zenker diverticulum occurs due to increased pressure in the oropharynx during swallowing against a closed upper esophageal sphincter. An epiphrenic diverticulum occurs from increased pressure during esophageal propulsive contractions against a closed lower esophageal sphincter. In contrast, traction diverticula occur as a consequence of pulling forces on the outside of the esophagus from an adjacent inflammatory process (eg, involvement of inflamed mediastinal lymph nodes in tuberculosis or histoplasmosis).
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| Doc2378
Forum Guru
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Thanks Sturge!
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| anjushree
Forum Guru
Topics: 64
Posts: 386
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pulsion diverticulum -----FALSE DIVERTICULUM-------only mucosal herniation
traction diverticulum------TRUE DIV---------Inv all layers of oesophagus
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