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parenchymal cell

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parenchymal cell
[pəreng′kiməl]
any cell that is a functional element of an organ, such as a hepatocyte.


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This sign may stem from diverse pathophysiologic mechanisms, including dilated hepatic sinusoids (in heart failure), persistently high venous pressure leading to liver congestion (in chronic constrictive pericarditis), dysfunction and engorgement of hepatocytes (in hepatitis), fatty infiltration of parenchymal cells causing fibrous tissue (in cirrhosis), distention of liver cells with glycogen (in diabetes), and infiltration of amyloid (in amyloidosis).
In some cases of amiodarone pulmonary toxicity, the accumulation of phospholipids in alveolar macrophages and in other parenchymal cells leads to lipoid pneumonia.
Genetic abnormalities in patients with MEN syndromes cause parathyroid tissues to develop into tiny rests of parenchymal cells scattered throughout the neck and mediastinum.
 
 
 
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