Pathology videos
Liver - Cardiac Cirrhosis
What 2 features enable the diagnosis of any type of cirrhosis? Are they present here. Describe them in words. Why is this called cardiac cirrhosis?
Kidney: Infarct, Congestion, Liver: Infarct,...
Delineate the area of infarction. Show coagulative necrosis. Show hyperemia, i.e., congestion.
Kidney - Septic Infarct
Why is the infarcted area paler (whiter) than normal, grossly, and microscopically? Delineate it?
Kidney - Disseminated Intravascular Coagulation...
Kidney--Disseminated intravascular coagulation, microthrombi, microinfarcts Why are some infarcts called micro-infarcts? What is the single best lab test to support the diagnosis of DIC? What is the...
Heart - Mural Thrombus - Infarct
Define mural thrombus. Demonstrate this one. What is its main component? Demonstrate fibrin. Can these embolize commonly? Define embolization. What are the lines of Zahn?
Esophagus - Ruptured Varices
What is a varix? What is the plural of varix? What are these the result of? Can a patient bleed to death in minutes from this? Encircle some varices? Do any appear thrombosed? Have some shown mucosal...
Colon - Hemorrhagic Infarhct
Why might this be called a red (rather then white) infarct? Which GI wall layers show pathologic changes? Show ulceration, peritonitis, and inflammatory cell infiltrates into the muscularis also.
Brain - Hemorrhage
Is this infarct more like due to thrombosis or vascular rupture? Demonstrate an acute hemorrhage area.
Artery - Thrombus, Atherosclerotic Plaque
Delineate the area of recent thrombosis from the chronic atherosclerotic plaque area. Are BOTH usually present in an acute MI?
Hemorrhoids
What is the definition of a hemorrhoid? Encircle several hemorrhoids. Encircle any which may be thrombosed. Is the overlying mucosa squamous or columnar? Is this more likely to be proximal or distal...
Uterus - Decidual Reaction
What is the definition of decidua? What normal cells of the endometrium is it derived from? Can you see it normally in the last few days of a menstrual cycle. What main hormone nurtures decidua? Draw...
Thyroid - Graves Disease
What is another name for Graves disease? Is the thyroid smaller than usual? Is it nodular? Is the serum T4 usually normal? Do the follicles in this case seem smaller than normal? Why? Find some follicles....
Thyroid - Colloid Goiter
What is the simple definition of a goiter? What is the differentiation between a toxic and non-toxic goiter? Are there any enlarged follicles here? Show one. What is another name for a toxic diffuse goiter?
Testis - Atrophy
Can you see any viable sperm producing cell precursors? Can you see any mature spermatozoa? Which cells of the testis are increased in this condition? Find them. Also find hyalinized tubules and explain...
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