difference between hiatal, sliding and paraesophageal hernia? - USMLE Forums
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Old 10-24-2011
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Anatomy difference between hiatal, sliding and paraesophageal hernia?

guys can you please tell me the difference between hiatal hernia, sliding hernia and paraesophageal hernia?
i always think that they are the same thing, but i have seen many questions in them!
all i know is they are due to problem in diaphragmatic opening and stomach moves up thru the opening..
can you tell me how to differentiate them?
really appreciate help!
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Old 10-24-2011
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Paraesophageal hernia is diaphragmatic hernia, so you have increase in space between left and right crus of the diaphragm and stomach goes up into thorax. So the outcomes are usually GERD-like cuz the LES loses its functionality and sometimes compression of the left lung in the worst case scenario. Hiatal is a hernia of diaphragmatic hiatus. These are similar.

Sliding hernia is when the hernia sac moves freely lets say from abdomen to scrotum (roughly speeking) in inguinal hernia or from abdomen to thorax and back. The opposite of this would be incarcerated hernia - it is when the sac is captured by hernia walls. This is more of a mechanical term, not descriptive.
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