Types of Necrosis and Gangrene

Vocabulary flashcards covering types of necrosis, gangrene classifications, causative organisms, and associated clinical terminology based on the lecture notes.

Coagulative Necrosis

The most common type of necrosis that occurs due to ischemia (loss of blood supply) resulting in oxygen deprivation, which can progress to gangrenous necrosis if invaded by microorganisms.

Ischemia

Loss of blood supply resulting in oxygen deprivation.

Wet Gangrene

A type of gangrene resulting from a combination of liquefactive necrosis and coagulative necrosis.

Gas Gangrene

The most fatal type of gangrene, caused by the microorganism Clostridium perfringens.

Clostridium perfringens

A Gram (+) rod, spore-forming microorganism contracted through soil that causes gas gangrene.

Caseous Necrosis

A form of necrosis that appears cheese-like in texture and is common in conditions like tuberculosis and certain fungal infections.

Fibrinoid Necrosis

A form of necrosis occurring when tissue shows pink, fibrin-like material under a microscope.

Phlebitis

Inflammation of veins caused by substances such as propylene glycol or diazepam.

Propylene Glycol

A solvent used in a lot of injectable medications, such as diazepam, that can cause phlebitis.

Liquefaction Necrosis

A form of necrosis affecting the central nervous system (CNS) that occurs when tissue becomes liquefied due to enzymes.

Granuloma

Activated inflammation that can progress to liquefaction necrosis, potentially becoming a radicular cyst.

Radicular Cyst

The most common (MC) odontogenic cyst, which can potentially develop from a granuloma that progresses to liquefaction necrosis.