Acute and Chronic Inflammation — Flashcards

Flashcard 1: Which type of section is used for the histological demonstration of lipids (fats)?

Answer: Frozen section

Extra: Routine paraffin embedding involves the use of organic solvents like xylene and alcohols, which dissolve lipids. Frozen sections bypass these steps, preserving lipids for demonstration with special stains such as Oil Red O or Sudan Black.

Flashcard 2: _____ are collections of epithelioid histiocytes, usually surrounded by giant cells and a rim of lymphocytes

Answer: Granulomas

Flashcard 3: One histological feature seen after an ischemic stroke is the presence of _____ which cause liquefactive necrosis, appearing between 1 - 3 days

Answer: neutrophils

Flashcard 4: _____ is a tell-tale sign of free radical injury and lipid peroxidation.

Answer: Lipochrome/Lipofuschin

Flashcard 5: _____ granulomas are non-caseating granulomas minimally surrounded by lymphocytes.

Answer: Naked

Flashcard 6: _____ type of necrosis is characterized by the enzymatic digestion

Answer: Liquefactive

Flashcard 7: Galactosemia is associated with _____ cataract

Answer: oil-drop

Flashcard 8: What type of cells are the following examples? _____

Answer: Permanent

Flashcard 9: What is the staining method? _____

Answer: Osmium tetroxide

Flashcard 10: _____ monitor precision and accuracy; R-charts monitor only precision.

Answer: LJ charts

Extra: LJ = Levey-Jennings; R-chart = Range chart.