Difference between revisions of "IPLab:Lab 6:Amyloidosis"

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== Clinical Summary ==  
 
== Clinical Summary ==  
This 46-year-old white male with a long-standing history of rheumatoid arthritis was admitted for treatment of pneumonia. Subsequently, complications associated with lung abscesses, empyema, and septicemia led to the patient's death.
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This 46-year-old male with a long-standing history of rheumatoid arthritis was admitted for treatment of pneumonia. Subsequently, complications associated with lung abscesses, empyema, and septicemia led to the patient's death.
  
== Autopsy Findings ==
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At autopsy the liver weighed 2600 grams. It was yellowish-tan in color and cut with difficulty (fibrosis?). No other pathological changes were noted except for pneumonia and lung abscesses.
The liver weighed 2600 grams. It was yellowish-tan in color and cut with difficulty (fibrosis?). No other pathological changes were noted except for pneumonia and lung abscesses.
 
  
 
== Images ==
 
== Images ==
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File:IPLab6Amyloid6.jpg|This is a low-power photomicrograph of liver tissue stained with Congo red (orange color in slide). Congo red reacts with amyloid and gives it an orange color (arrows).  
 
File:IPLab6Amyloid6.jpg|This is a low-power photomicrograph of liver tissue stained with Congo red (orange color in slide). Congo red reacts with amyloid and gives it an orange color (arrows).  
 
File:IPLab6Amyloid7.jpg|This is a high-power view of liver tissue stained with Congo red. The orange amyloid material (arrows) is seen clearly between liver parenchymal cells.  
 
File:IPLab6Amyloid7.jpg|This is a high-power view of liver tissue stained with Congo red. The orange amyloid material (arrows) is seen clearly between liver parenchymal cells.  
File:IPLab6Amyloid8.jpg|This is a photomicrograph of Congo-red-stained liver tissue viewed with partially polarized light. Although not well demonstrated in this image, Congo-red-stained amyloid viewed through polarized light should give off a classic “apple green” birefringence (arrows).  
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File:IPLab6Amyloid8.jpg|This is a photomicrograph of Congo-red-stained liver tissue viewed with partially polarized light. Although not well demonstrated in this image, Congo-red-stained amyloid viewed through polarized light should give off a classic “apple green” birefringence (arrows).
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File:IPLab6Amyloid8b.jpg|The amyloid in this Congo-red-stained liver tissue demonstrates the classic “apple green” birefringence when viewed through polarized light. 
 
File:IPLab6Amyloid9.jpg|This is a gross photograph of kidney from this case. Note the pale yellow material within the cortex (arrows). This is indicative of amyloid within the cortex and the glomeruli. Also note that there are multiple red spots in the cortex. These represent congested glomeruli due to the vascular compromise produced by the amyloid.  
 
File:IPLab6Amyloid9.jpg|This is a gross photograph of kidney from this case. Note the pale yellow material within the cortex (arrows). This is indicative of amyloid within the cortex and the glomeruli. Also note that there are multiple red spots in the cortex. These represent congested glomeruli due to the vascular compromise produced by the amyloid.  
 
File:IPLab6Amyloid10.jpg|This photomicrograph of kidney demonstrates the amyloid deposits (arrows) within glomeruli.  
 
File:IPLab6Amyloid10.jpg|This photomicrograph of kidney demonstrates the amyloid deposits (arrows) within glomeruli.  
 
File:IPLab6Amyloid11.jpg|This photomicrograph of the tongue demonstrates extensive amyloid deposits (1) separating the skeletal muscle fibers of the tongue. In many cases the amyloid encircles the muscle fibers (2) and these muscle fibers are atrophied.  
 
File:IPLab6Amyloid11.jpg|This photomicrograph of the tongue demonstrates extensive amyloid deposits (1) separating the skeletal muscle fibers of the tongue. In many cases the amyloid encircles the muscle fibers (2) and these muscle fibers are atrophied.  
 
</gallery>
 
</gallery>
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== Virtual Microscopy ==
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=== Liver: Amyloid H&E ===
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<peir-vm>IPLab6Amyloid_HE</peir-vm>
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=== Liver: Amyloid Congo Red ===
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<peir-vm>IPLab6Amyloid_Congo_Red</peir-vm>
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=== Normal Liver H&E ===
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<peir-vm>UAB-Histology-00149</peir-vm>
  
 
== Study Questions ==
 
== Study Questions ==
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=== Images ===
 
=== Images ===
* [http://peir.path.uab.edu/library/index.php?/tags/65-amyloidosis PEIR Digital Library: Amyloidosis Images]
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* [{{SERVER}}/library/index.php?/tags/65-amyloidosis PEIR Digital Library: Amyloidosis Images]
 
* [http://library.med.utah.edu/WebPath/CINJHTML/CINJIDX.html#4 WebPath: Cellular Accumulations]
 
* [http://library.med.utah.edu/WebPath/CINJHTML/CINJIDX.html#4 WebPath: Cellular Accumulations]
  

Latest revision as of 00:22, 9 July 2020

Clinical Summary[edit]

This 46-year-old male with a long-standing history of rheumatoid arthritis was admitted for treatment of pneumonia. Subsequently, complications associated with lung abscesses, empyema, and septicemia led to the patient's death.

At autopsy the liver weighed 2600 grams. It was yellowish-tan in color and cut with difficulty (fibrosis?). No other pathological changes were noted except for pneumonia and lung abscesses.

Images[edit]

Virtual Microscopy[edit]

Liver: Amyloid H&E[edit]

Liver: Amyloid Congo Red[edit]

Normal Liver H&E[edit]

Study Questions[edit]


Additional Resources[edit]

Reference[edit]

Journal Articles[edit]

Images[edit]

Related IPLab Cases[edit]


In alcoholics, aspiration pneumonia is common--bacteria enter the lung via aspiration of gastric contents.

An abscess is a collection of pus (white blood cells) within a cavity formed by disintegrated tissue.

A normal liver weighs 1650 grams (range: 1500 to 1800 grams).