Questions and answers

When does liquefaction necrosis occur?

When does liquefaction necrosis occur?

The disease has a worldwide distribution and typically occurs in the late fall through early spring. Neurologic (most common) and hepatoxic syndromes are recognized. Clinical signs develop 3 to 4 weeks after daily ingestion of contaminated corn. The onset of clinical signs is rapid with death occurring in 2 to 3 days.

What causes liquefaction necrosis?

Bacterial infection is the principal cause of liquefactive necrosis but not the only one. For obscure reasons, ischemic injury within the central nervous system after arterial occlusion evokes liquefactive necrosis. The dead brain tissue is softened and converted into a liquid viscous mass.

Is an abscess liquefactive necrosis?

Liquefactive necrosis is typical of organs in which the tissues have a lot of lipid (such as brain) or when there is an abscess with lots of acute inflammatory cells whose release of proteolytic enzymes destroys the surrounding tissues.

Is apoptosis reversible or irreversible?

It is currently believed that apoptosis induction may be an irreversible process. Initial results from our laboratory have shown that DNA repair is activated early in p53-induced apoptosis, and that early stages may indeed be reversible.

Why do abscesses liquify?

Due to excitotoxicity, hypoxic death of cells within the central nervous system can result in liquefactive necrosis. This is a process in which lysosomes turn tissues into pus as a result of lysosomal release of digestive enzymes. Loss of tissue architecture means that the tissue can be liquefied.

Are necrosis and gangrene the same thing?

Gangrene is dead tissue (necrosis) consequent to ischemia. In the image above, we can see a black area on half of the big toe in a diabetic patient. This black area represents necrosis—dead tissue—in fact, gangrene of the big toe.

What is Caseating necrosis?

Caseous necrosis or caseous degeneration (/ˈkeɪsiəs/) is a unique form of cell death in which the tissue maintains a cheese-like appearance. It is also a distinctive form of coagulative necrosis. The dead tissue appears as a soft and white proteinaceous dead cell mass.

How do you know if a tooth abscess has spread to your brain?

The tooth infection spread to brain symptoms are more or less similar to the symptoms you see when the infection has spread to the body, but brain abscesses also have some other telltale clues: Confusion or irritability. Issues with nerve function, like muscle weakness or even paralysis. Seizures.

Can tooth abscess spread to brain?

A dental abscess can also travel to the brain, leading to the development of another abscess. If the infection reaches your brain, it can be life-threatening. Since a brain abscess is so dangerous, the condition requires a visit to the hospital or emergency room for urgent treatment.