Pathology videos

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Lung - Asthma

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Describe, in words, some major ways bronchioles in asthma differ from normal bronchioles. Show some.

Liver - Amyloidosis

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Name at least three other things which appear hyaline on microscopy, i.e., eosinophilic, glassy, and amorphous, besides amyloid?

Liver - Primary Biliary Cirrhosis

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What two histopathologic features seen here prove this is cirrhosis? In which part of the hepatic lobule are the early inflammatory and fibrotic changes the most severe in primary biliary cirrhosis? Portal...

Kidney - Systemic Lupus Erythematosus

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Can you agree that the glomerular basement membrane area is thickened, compared to a normal glomerulus? Find a wire loop Are there many different kinds of renal pathologies with lupus, or is this the...

Kidney - Chronic Transplant Rejection

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What are the three classic patterns of transplant rejection, with respect to time after transplant? Which histopathologic pattern is present here. Show it, and verbalize it.

Kidney - Amyloidosis

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Find a hyalinized area in a blood vessel. Find one in a blood vessel. How would you prove this is amyloid? How does it differ from an atherosclerotic plaque? How does it differ from a thrombus?

Kidney - Microscopic Polyarteritis

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Encircle an involved blood vessel. What kind of blood vessel is it? Described the abnormality in plain English.

Kidney - Membranous Glomerulonephritis

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In which part of the glomerulus are the abnormal deposits of membranous glomerulonephritis? Are there much better seen on electron microscopy rather than routine light microscopy? Why? Do they look like...

Kidney - Acute Transplant Rejection

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What are the three classic patterns of transplant rejection, with respect to time after transplant? Which histopathologic pattern is present here. Show it, and verbalize it.

Rheumatoid Arthritis

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Which part of the classic synovial joint is the most intensely involved in RA?---Bone, hyaline articular cartilage, ligament, tendon, or synovium? Demonstrate it and describe the pattern of inflammation...

Heart - Amyloidosis

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Encircle some amyloid? Now which special stain are you going to order to prove this hyaline area is amyloid? What special microscopic technique will you use as well? Which 2 diseases (one benign, one...

Endocarditis - Subacute Endocarditis

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Please try to consider in which of the three heart walls (myo-, endo- or pericardium) is the primary inflammatory focus. Try to describe the inflammation pattern on your own. Is the area encircle? In...

Heart Infammated by Rheumatic Fever

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Which is the difference from healthy myocardium? Can you find the pattern of inflammation? Can you see giant cells? Can you find some granulomas? Who has given the name of these cells? Who was Karl Ludwig...

Sarcoidosis In Brain And Cerebellum

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Find some granulomas in this cerebellum. Which pathology is in this cerebellum present? Non caseating granulomas which have negative staining for Tuberculosis and fungi are often diagnosed as sarcoid.

Adrenal Gland - Polyarteritis

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Which arteries are involved? Which of three vascular layers is inflammed - intima, media, adventitia, or all? Why is this called "fibrinoid"? Is this necrotic fibrinoid area also hyalined?

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