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Category:Oesophagus - Pathology (view source)

Revision as of 11:24, 28 May 2010

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==Degenerative Pathology==

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~~===Acquired megaoesophagus===~~

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*Occurs spontaneously in adult in any disorder that disrupts normal reflex involved in swallowing either peripheral or central.

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*These can include:

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**Viral encephalitides

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**Peripheral neuropathies

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***Degeneration or inactivity of local myenteric nerve plexuses (Auerbach’s plexuses),

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***or to lesions in the vagus nerve or the central nucleus in the medulla of the brain which supply the [[Oesophagus - Anatomy & Physiology|oesophagus]].

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**Poisonings such as:

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***Lead

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***Tetanus

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***Botulism

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**Myopathies.

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*The result is the presence of a hypotonic [[Oesophagus - Anatomy & Physiology|oesophagus]] in which food accumulates causing distension

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*Usually the thoracic oesophagus from the thoracic inlet to the diaphragm is affected and grossly the [[Oesophagus - Anatomy & Physiology|oesophagus]] is dilated, thin-walled and hypotonic.

==Metabolic Pathology==

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Category:Oesophagus - Pathology (view source)

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