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| This glossary contains: 19186 medical terms |
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Biopsy
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Biopsy Surgical removal of a piece of tissue from a person for microscopic examination to make a diagnosis (eg to determine whether abnormal cells such as cancer cells are present).
RELATED TERMS--------------------------------------
Tissue
Biological tissue is a group of cells that perform a similar function.The study of tissues is known as histology, or, in connection with disease, histopathology.The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope, though developments in electron microscopy, immunofluorescence, and frozen sections have all added to the sum of knowledge in the last couple of decades.
Diagnosis
The determination of the presence of a specific disease or infection, usually accomplished by evaluating clinical symptoms and laboratory tests.
Abnormal
Not normal. Deviating from the usual structure, position, condition, or behavior. In referring to a growth, abnormal may mean that it is cancerous or premalignant (likely to become cancer).
Cancer
Any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream.
SIMILAR TERMS--------------------------------------
Biopsy, bone marrow
See: Bone marrow biopsy.
Biopsy, brain
See: Brain biopsy.
Biopsy, breast
See: Breast biopsy.
Biopsy, endometrial
See: Endometrial biopsy.
Biopsy, excisional
See: Excisional biopsy.
Biopsy, incisional
See: Incisional biopsy.
Biopsy, liver
See: Liver biopsy.
Biopsy, muscle
See: Muscle biopsy.
Biopsy, punch
See: Punch biopsy.
Biopsy, sentinel-lymph-node
See: Sentinel lymph node biopsy.
Biopsy, skin
See: Skin biopsy.
Biopsy, stereotactic needle
See: Stereotactic needle biopsy.
PREVIOUS AND NEXT TERMS--------------------------------------
Binding proteins
Proteins that bind to water-soluble hormones, such as sex hormones, cortisol, and thyroid; or certain water-soluble proteins, such as insulin-like growth factor to maintain stable circulating levels of the hormone in the bloodstream.
Biological Marker of Aging
Any physiological marker that appears to be universal in an aging population.
Biological Response Modifier
Any molecule that can modify the biological response of cells to changes in its external environment.
Blood Glucose
The primary source of energy for the brain. Elevated blood glucose levels cause diabetes and accelerate aging.
Blood
The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.
Biopsy
Base
A chemical compound that either donates hydroxide ions or absorbs hydrogen ions when dissolved in water. Bases and acids are referred to as opposites because the effect of an acid is to increase the hydronium ion concentration in water, whereas bases reduce this concentration. Arrhenius bases are water-soluble and always have a pH greater than 7 in solution.
B-Endorphin
A hormone derived from the pituitary that induces opiate-like responses to decrease pain. The release of its precursor hormone (B-lipotropin) requires cyclic AMP.
Basal Cell Carcinoma
The most common non-melanoma skin cancer. It begins in the lowest layer of the epidermis, called the basal cell layer. It usually develops on sun-exposed areas, especially the head and neck. Basal cell cancer is slow-growing and is not likely to spread to distant parts of the body. A malignant skin neoplasm that seldom metastasizes but has potentialities for local invasion and destruction. Clinically it is divided into types: nodular, cicatricial, morphaic, and erythematoid (pagetoid). More than 95% of these carcinomas occur in patients over 40. They develop on hairbearing skin, most commonly on sunexposed areas. Approximately 85% are found on the head and neck area and the remaining 15% on the trunk and limbs.
Brain stem glioma
A tumor located in the part of the brain that connects to the spinal cord (the brain stem). It may grow rapidly or slowly, depending on the grade of the tumor.
Brain tumor
A brain tumor is any mass created by an abnormal and uncontrolled growth of cells either found in the brain (neurons, glial cells, epithelial cells, myelin producing cells, etc.) or spread from elsewhere (metastasis). Brain tumors are usually located in the posterior third of the brain in childhood and in the anterior two-thirds of the brain in adulthood.
RELATED TERMS--------------------------------------
Tissue
Biological tissue is a group of cells that perform a similar function.The study of tissues is known as histology, or, in connection with disease, histopathology.The classical tools for studying the tissues are the wax block, the tissue stain, and the optical microscope, though developments in electron microscopy, immunofluorescence, and frozen sections have all added to the sum of knowledge in the last couple of decades.
Diagnosis
The determination of the presence of a specific disease or infection, usually accomplished by evaluating clinical symptoms and laboratory tests.
Abnormal
Not normal. Deviating from the usual structure, position, condition, or behavior. In referring to a growth, abnormal may mean that it is cancerous or premalignant (likely to become cancer).
Cancer
Any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream.
SIMILAR TERMS--------------------------------------
Biopsy, bone marrow
See: Bone marrow biopsy.
Biopsy, brain
See: Brain biopsy.
Biopsy, breast
See: Breast biopsy.
Biopsy, endometrial
See: Endometrial biopsy.
Biopsy, excisional
See: Excisional biopsy.
Biopsy, incisional
See: Incisional biopsy.
Biopsy, liver
See: Liver biopsy.
Biopsy, muscle
See: Muscle biopsy.
Biopsy, punch
See: Punch biopsy.
Biopsy, sentinel-lymph-node
See: Sentinel lymph node biopsy.
Biopsy, skin
See: Skin biopsy.
Biopsy, stereotactic needle
See: Stereotactic needle biopsy.
PREVIOUS AND NEXT TERMS--------------------------------------
Binding proteins
Proteins that bind to water-soluble hormones, such as sex hormones, cortisol, and thyroid; or certain water-soluble proteins, such as insulin-like growth factor to maintain stable circulating levels of the hormone in the bloodstream.
Biological Marker of Aging
Any physiological marker that appears to be universal in an aging population.
Biological Response Modifier
Any molecule that can modify the biological response of cells to changes in its external environment.
Blood Glucose
The primary source of energy for the brain. Elevated blood glucose levels cause diabetes and accelerate aging.
Blood
The life-maintaining fluid which is made up of plasma, red blood cells (erythrocytes), white blood cells (leukocytes), and platelets; blood circulates through the body's heart, arteries, veins, and capillaries; it carries away waste matter and carbon dioxide, and brings nourishment, electrolytes, hormones, vitamins, antibodies, heat, and oxygen to the tissues.
Biopsy
Base
A chemical compound that either donates hydroxide ions or absorbs hydrogen ions when dissolved in water. Bases and acids are referred to as opposites because the effect of an acid is to increase the hydronium ion concentration in water, whereas bases reduce this concentration. Arrhenius bases are water-soluble and always have a pH greater than 7 in solution.
B-Endorphin
A hormone derived from the pituitary that induces opiate-like responses to decrease pain. The release of its precursor hormone (B-lipotropin) requires cyclic AMP.
Basal Cell Carcinoma
The most common non-melanoma skin cancer. It begins in the lowest layer of the epidermis, called the basal cell layer. It usually develops on sun-exposed areas, especially the head and neck. Basal cell cancer is slow-growing and is not likely to spread to distant parts of the body. A malignant skin neoplasm that seldom metastasizes but has potentialities for local invasion and destruction. Clinically it is divided into types: nodular, cicatricial, morphaic, and erythematoid (pagetoid). More than 95% of these carcinomas occur in patients over 40. They develop on hairbearing skin, most commonly on sunexposed areas. Approximately 85% are found on the head and neck area and the remaining 15% on the trunk and limbs.
Brain stem glioma
A tumor located in the part of the brain that connects to the spinal cord (the brain stem). It may grow rapidly or slowly, depending on the grade of the tumor.
Brain tumor
A brain tumor is any mass created by an abnormal and uncontrolled growth of cells either found in the brain (neurons, glial cells, epithelial cells, myelin producing cells, etc.) or spread from elsewhere (metastasis). Brain tumors are usually located in the posterior third of the brain in childhood and in the anterior two-thirds of the brain in adulthood.
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This dictionary contains 19186 terms.
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