Pathology videos
Small Intestine- Crohn Disease
Which 4 layers of the GI wall are classically involved by Crohn (or more commonly Crohns or Crohn's) disease, one or most? What single small histopathologic structure is almost diagnostic of Crohn disease?...
Skin - Ulcer - Amputation Stump
What is the definition of an ulcer anywhere in the body? Draw a line where the viable appearing epithelium ends and the inflammatory tissue starts.
Skin - Keloid
Name some extremely common areas for keloids to occur. What are they related to most of the time? What is the primary histopathologic process found in keloid formation. Put a box around a 100Andpercnt;...
Furuncle (Abscess)
What is the definition of a furuncle? Is it different from a carbuncle? Are these abscesses primarily involving the dermis or epidermis? Delineate some dermal abscesses.
Lymphocytic Infiltrate (Possible Tick Bite)
Are lymphocytic infiltrates in various parts of the skin specific for any disease or one of the most NON-specific findings in dermatopathology? If you saw tick body parts in this slide would be be able...
Pituitary - Partial Infarct
What non-specific type of tissue response is seen in this pituitary secondary to infarction, coagulative necrosis, caseous necrosis, hemorrhagic necrosis, or liquefactive necrosis?
Acute Pancreatitis 2
What is the cause of the fat necrosis in the peripancreatic fat of this pancreas? Demonstrate it. Why is the term saponification often used with respect to acute pancreatitis? What is the typical profile...
Acute Pancreatitis
What is the cause of the fat necrosis in the peripancreatic fat of this pancreas? Demonstrate it. Why is the term saponification often used with respect to acute pancreatitis? What is the typical profile...
Tuberculosis
Demonstrate a caseating granuloma. Where is the caseating granuloma located with respect to the rest of the granuloma? Could this lymph node stain or culture positive for acid fast bacilli? Does it...
Sarcoidosis
What does the term caseation mean? Is it a gross or microscopic descriptive word? What percentage of this lymph node is occupied by granulomas? Why is it commonly said that the granulomas of sarcoid...
Pleura - Adhesion
Can you separate visceral from parietal pleura in this section, even with a microscope? Can the terms adhesion and fibrosis, more or less, also be used interchangeably? Draw a line delineating the...
Organizing Pneumonia
Why is this called organizing? What are the common cells and structures seen in organizing inflammation in ANY part of the body? Can the terms organizing inflammation and granulation tissue be used...
Lung - Healed Granuloma
Why is this called healed? If this was active TB years ago, and it is now called healed, might you still expect to culture acid fast organisms from here? Can the terms fibrosis and scarring be used...
Bronchopneumonia With Micro-Abscesses
What is a microabscess defined as? Delineate an alveolus jam packed with neutrophils
Sarcoidosis
What is a classical profile with somebody with sarcoid? Why do may people, erroneously, regard sarcoidosis as granulomas in which no organisms can be cultured? Demonstrate a classical granuloma. What...
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