Bronchogenic cyst pathophysiology: Difference between revisions

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(Created page with "__NOTOC__ {{Bronchogenic cyst}} {{CMG}} ==Overview== ==Pathophysiology== Bronchogenic cysts originate from anomalous development of the ventral foregut and can be found thro...")
 
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If the cyst compresses a vital respiratory or cardiac structure, it can be symptomatic and life threatening.
If the cyst compresses a vital respiratory or cardiac structure, it can be symptomatic and life threatening.
===Gross Pathology===
Images shown below are courtesy of Professor Peter Anderson DVM PhD and published with permission. [http://www.peir.net © PEIR, University of Alabama at Birmingham, Department of Pathology]
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Image:Bronchogenic cyst 1.jpeg|Lower Respiratory Tract: Bronchogenic cysts are grossly nondescript, usually unilocular cavities containing mucus or mucopurulent material with a wall that varies in thickness and may contain cartilage.
Image:Bronchogenic cyst 2.jpeg|Lower Respiratory Tract: Bronchogenic cysts are grossly nondescript, usually unilocular cavities containing mucus or mucopurulent material with a wall that varies in thickness and may contain cartilage.
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Image:Bronchogenic cyst 10.jpeg|Mediastinum: Bronchogenic cyst;  A thin-walled cyst which was present in the posterior mediastinum is distended with slightly cloudy somewhat mucinous fluid.
Image:Bronchogenic cyst 8.jpeg|Heart-Great Vessels: Bronchogenic cyst; This example was removed from the epicardial surface of a 13-year-old.
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===Microscopic Pathology===
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Image:Bronchogenic cyst 3.jpeg|Lower Respiratory Tract: Intrathoracic bronchogenic cyst; Histologically, smooth muscle bundles, minor salivary gland type tissue, and cartilage can be seen in the wall of the cyst.
Image:Bronchogenic cyst 4.jpeg|Lower Respiratory Tract: Intrathoracic bronchogenic cyst; The lining is typically pseudostratified ciliated columnar epithelium which may show foci of squamous metaplasia at sites of inflammation (arrow).
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Image:Bronchogenic cyst 5.jpeg|Lower Respiratory Tract: Bronchogenic cyst; There is a cyst lined by bronchiolar epithelium and thick fascicles of smooth muscle in the wall. Islands of cartilage and submucosal salivary glands are lacking and the designation "foregut cyst consistent with bronchogenic cyst" might be more appropriate.
Image:Bronchogenic cyst 6.jpeg|Lower Respiratory Tract: Bronchogenic cyst; There is a cyst lined by bronchiolar epithelium and thick fascicles of smooth muscle in the wall. Islands of cartilage and submucosal salivary glands are lacking and the designation "foregut cyst consistent with bronchogenic cyst" might be more appropriate.
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Image:Bronchogenic cyst 7.jpeg|Lower Respiratory Tract: Bronchogenic cyst; There is a multiloculated cyst lined by bronchiolar epithelium. A small island of cartilage is present at the upper right. 
Image:Bronchogenic cyst 9.jpeg|Heart-Great Vessels: Bronchogenic cyst; The lining cells are cuboidal, and the cysts are surrounded by muscle and may contain underlying seromucous glands. 
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Image:Bronchogenic cyst 11.jpeg|Mediastinum: Bronchogenic cyst; The inner surface is smooth and trabeculated in areas. 
Image:Bronchogenic cyst 12.jpeg|Mediastinum: Bronchogenic cyst; The cyst is lined by pseudostratified ciliated columnar epithelial cells and the wall contains accessory glands, layers of smooth muscle, and cartilage.
Image:Bronchogenic cyst 13.jpeg|Mediastinum: Bronchogenic cyst; The cyst is lined by pseudostratified ciliated columnar epithelial cells and the wall contains accessory glands, layers of smooth muscle, and cartilage.
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==References==
==References==

Revision as of 16:22, 25 September 2012

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Pathophysiology

Bronchogenic cysts originate from anomalous development of the ventral foregut and can be found throughout the tracheoesophageal distribution including perihilar or intraparenchymal areas. they are usually single but may be multiple.

The most common location to find the anomaly is in the carina. The rarest locations include the interatrial septum, neck, abdomen, and retroperitoneal space.

If the cyst compresses a vital respiratory or cardiac structure, it can be symptomatic and life threatening.

Gross Pathology

Images shown below are courtesy of Professor Peter Anderson DVM PhD and published with permission. © PEIR, University of Alabama at Birmingham, Department of Pathology

Microscopic Pathology

References

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