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Glossary

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myocardial infarction
Myocardial infarction
Myocardial infarction is necrosis of myocardial tissue which occurs as a result of a deprivation of blood supply, and thus oxygen, to the heart tissue. Blockage of blood supply to the myocardium is caused by occlusion of a coronary artery.
410 grams
A normal heart weighs 300 grams (range: 270 to 360 grams).
atherosclerotic narrowing
Atherosclerosis is the deposition of lipid into the intima of arteries, resulting in narrowing of the vessel lumen.
occlusion
An occlusion is a blockage.
thrombus
A thrombus is a solid mass resulting from the aggregation of blood constituents within the vascular system.
palliative surgery
Palliative surgery provides alleviation but is not curative.
15,256 cells/cm²
A normal white blood cell count is 4000-11,000 cells/cm².
infiltrates
infiltrate
An infiltrate is an accumulation of cells in the lung parenchyma--this is a sign of pneumonia.
consolidated
Consolidation is the filling of lung air spaces with exudate--this is a sign of pneumonia.
abscesses
abscess
An abscess is a collection of pus (white blood cells) within a cavity formed by disintegrated tissue.
oral candidiasis
Candidiasis is an infection by the fungus Candida in the oral cavity.
hematuria
Hematuria is the presence of blood in the urine.
pyuria
Pyuria is the presence of white blood cells (pus) in the urine.
septic
Sepsis is the presence and persistence of pathogenic microorganisms and their toxins in the blood.
disseminated intravascular coagulation
DIC is the development of small thrombi within the microcirculation throughout the body.
acid fast bacilli
Acid fast bacilli are not easily decolorized by acid during staining. This is characteristic of mycobacteria.
620 grams
A normal left lung weighs 375 grams (range: 325 to 480 grams).
1230 grams
A normal right lung weighs 450 grams (range: 360 to 570 grams.
congestion
Pulmonary congestion is the engorgement of pulmonary vessels with blood. The increased pressure caused by this engorgement leads to transudation of fluid through the capillary walls and into the alveolar and interstitial spaces.
edema
Pulmonary edema refers to the accumulation of fluid in the pulmonary alveolar and tissue spaces as a result of changes in capillary permeability and/or increases in capillary hydrostatic pressure.
disseminated tuberculosis
miliary tuberculosis
Disseminated tuberculosis refers to the hematogenous spread of tuberculous lesions throughout the body. It is also known as miliary tuberculosis (which is so-called because the lesions resemble millet).
tuberculosis granulomas
A tuberculosis granuloma is a focus of granulomatous inflammation caused by CHRONIC tuberculosis infection. The granuloma consists of epithelioid cells (activated macrophages) surrounded by lymphocytes, plasma cells, and fibroblasts.
anthracotic pigment
Anthracotic pigment is coal dust deposited in the lungs--it is seen in coal miners, city-dwellers, and smokers.
caseous
"Caseous" means "cheesy."

Myocardial infarction is necrosis of myocardial tissue which occurs as a result of a deprivation of blood supply, and thus oxygen, to the heart tissue. Blockage of blood supply to the myocardium is caused by occlusion of a coronary artery.

Myocardial infarction is necrosis of myocardial tissue which occurs as a result of a deprivation of blood supply, and thus oxygen, to the heart tissue. Blockage of blood supply to the myocardium is caused by occlusion of a coronary artery.

An occlusion is a blockage.

Atherosclerosis is the deposition of lipid into the intima of arteries, resulting in narrowing of the vessel lumen.

A thrombus is a solid mass resulting from the aggregation of blood constituents within the vascular system.

Palliative surgery provides alleviation but is not curative.

An infiltrate is an accumulation of cells in the lung parenchyma--this is a sign of pneumonia.

An infiltrate is an accumulation of cells in the lung parenchyma--this is a sign of pneumonia.

In alcoholics, aspiration pneumonia is common--bacteria enter the lung via aspiration of gastric contents.

Consolidation is the filling of lung air spaces with exudate--this is a sign of pneumonia.

An abscess is a collection of pus (white blood cells) within a cavity formed by disintegrated tissue.

An abscess is a collection of pus (white blood cells) within a cavity formed by disintegrated tissue.

Candidiasis is an infection by the fungus Candida in the oral cavity.

Hematuria is the presence of blood in the urine.

Pyuria is the presence of white blood cells (pus) in the urine.

Sepsis is the presence and persistence of pathogenic microorganisms and their toxins in the blood.

DIC is the development of small thrombi within the microcirculation throughout the body.

Acid fast bacilli are not easily decolorized by acid during staining. This is characteristic of mycobacteria.

A normal left lung weighs 375 grams (range: 325 to 480 grams).

A normal right lung weighs 450 grams (range: 360 to 570 grams.

Disseminated tuberculosis refers to the hematogenous spread of tuberculous lesions throughout the body. It is also known as miliary tuberculosis (which is so-called because the lesions resemble millet).

Disseminated tuberculosis refers to the hematogenous spread of tuberculous lesions throughout the body. It is also known as miliary tuberculosis (which is so-called because the lesions resemble millet).

A tuberculosis granuloma is a focus of granulomatous inflammation caused by CHRONIC tuberculosis infection. The granuloma consists of epithelioid cells (activated macrophages) surrounded by lymphocytes, plasma cells, and fibroblasts.

Anthracotic pigment is coal dust deposited in the lungs--it is seen in coal miners, city-dwellers, and smokers.

Caseous means cheesy.