What are the features of caseous necrosis?
What are the features of caseous 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.
What is the mechanism in caseous necrosis?
Mechanisms of caseous necrosis. Activated cytolytic T lymphocytes kill M. tuberculosis-infected macrophages, leading to destruction of surrounding tissue. The host locally destroys its own tissue to control the uninhibited intracellular multiplication of bacilli that would otherwise be fatal (1).
What does necrosis look like on histology?
The necrotic tissue appears as white and friable, like clumped cheese. Dead cells disintegrate but are not completely digested, leaving granular particles. Microscopic examination shows amorphous granular debris enclosed within a distinctive inflammatory border.
What type of necrosis is associated with pulmonary tuberculosis?
Frequently, caseous necrosis is associated with tuberculosis (TB).
What is Caseous material?
Reviewed on 3/29/2021. Caseous: Cheeselike. In caseous lymphadenitis, the lymph nodes turn into a soft, dry, crumbly mass resembling cheese, usually due to tuberculosis or a related infection. From caseum, the Latin word for cheese. CONTINUE SCROLLING OR CLICK HERE.
What is Caseous granuloma?
Caseating granuloma means necrosis involving dead cells with no nuclei and debris. Without microscope, the cheese like pattern was seen in the these granulomas .
What is caseous material?
What is necrosis types of necrosis?
In addition to liquefactive and coagulative necrosis, the other morphological patterns associated with cell death by necrosis are: Caseous Necrosis. Fat Necrosis. Gangrenous Necrosis. Fibrinoid necrosis.
What is a Caseous?
Caseous: Cheeselike. In caseous lymphadenitis, the lymph nodes turn into a soft, dry, crumbly mass resembling cheese, usually due to tuberculosis or a related infection. From caseum, the Latin word for cheese.
What is the definition of caseous?
What is caseous degeneration?
Caseous necrosis or caseous degeneration (/ ˈ k eɪ s i ə s /) 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
What is the pathophysiology of oncosis?
Oncosis occurs when the mitochondria within a cell are damaged beyond recovery by toxins or hypoxia. ATP is thus not being made, which dysregulate the ionic concentration within the cell as the ionic pumps are no longer functioning. Sodium moves into the cell and water follow, making the cell explode.
What is the pathophysiology of folliculopathy (caseous lesions)?
Caseous lesions consist of necrotic cellular debris surrounded by a zone of suppurative inflammation. Depending on the duration of the lesions, they may be partially encapsulated by fibrous tissue.
What is the pathophysiology of caseous lesions of osteoporosis?
Sometimes necrosis and inflammation of the underlying bone occur as well. Caseous lesions consist of necrotic cellular debris surrounded by a zone of suppurative inflammation. Depending on the duration of the lesions, they may be partially encapsulated by fibrous tissue.
