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Blastoma
Blastoma "A tumor thought to arise in embryonic tissue. The term ""blastoma"" is commonly used as part of the name for a tumor as, for examples, in glioblastoma and medulloblastoma (types of brain tumors), hepatoblastoma (a liver tumor), nephroblastoma ( Wilms tumor of the kidney), neuroblastoma (a childhood tumor of neural origin), osteoblastoma (a bone tumor) and retinoblastoma (a tumor of the retina)."
RELATED TERMS--------------------------------------
Tumor
Overgrowth of tissue.
Embryonic
Undeveloped, related to the embryo.
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.
Brain
"That part of the central nervous system that is located within the cranium (skull). The brain functions as the primary receiver, organizer and distributor of information for the body. It has two (right and left) halves called ""hemispheres."" "
Liver
The largest organ in the body. The liver carries out many important functions, such as making bile, changing food into energy, and cleaning alcohol and poisons from the blood.
Childhood
1. The time for a boy or girl from birth until he or she is an adult. 2. The more circumscribed period of time from infancy to the onset of puberty.
Osteoblastoma
Usually benign but occasionally malignant and metastasising tumour which occurs most commonly in the spine.
Bone
Bone refers either to a hardened connective tissue or to one of the individual structures, or organs, into which it is formed, found in many animals. Bones support body structures, protect internal organs, and (in conjunction with muscles) facilitate movement; are also involved with cell formation, calcium metabolism, and mineral storage. The bones of an animal are, collectively, known as the skeleton.
Retinoblastoma
The most common cancer in the eye occurring in early childhood. A parent or doctor may first suspect a problem by detecting whiteness in the normally dark pupil. Occasionally it leads to a wandering eye (strabismus). It does not spread from one eye to the other but about 25% have a tumor in each eye. Immediate medical treatment is necessary. Sometimes the eye(s) must be removed to prevent spreading of the tumor into the brain.
SIMILAR TERMS--------------------------------------
BLAST
Abbreviation for Basic Local Alignment Search Tool, a computer program that identifies homologous genes in different organisms (such as worms, the fruit fly, mice, and humans). Homologous genes are genes in different species that share similar structures and functions.
Blast phase
Refers to advanced chronic myelogenous leukemia. In this phase, the number of immature, abnormal white blood cells in the bone marrow and blood is extremely high. Also called blast crisis.
Blastocoel
The fluid-filled cavity within the blastula.
Blastocyst
The developmental stage of the fertilized ovum by the time it is ready to implant; formed from the morula and consists of an inner cell mass, an internal cavity, and an outer layer of cells (the trophoblast).
Blastocyst cavity
The fluid-filled cavity within the blastocyst, sometimes referred to as the blastocoel.
Blastocystis hominis
The parasitic organism that causes blastocystosis. See Blastocystosis.
Blastocystis infection
See: Blastocystosis.
Blastocystosis
Infection with Blastocystis hominis, a common microscopic parasite found worldwide. Symptoms may include watery or loose stools, diarrhea, abdominal pain, anal itching, weight loss, and excess gas. Some people have no symptoms. The organism can remain in the intestines for weeks, months, or years. Diagnosis requires finding it in the stool, How Blastocystis is transmitted is unknown, although the number of people infected seems to increase in areas where sanitation and personal hygiene is inadequate. Treatment is with the antibiotics metronidazole or iodoquinol.
Blastokinin
See: Uteroglobin.
Blastomere
A cell from a morula-stage embryo.
Blastomyces dermatitidis
The fungus that causes a disease called blastomycosis.
Blastomycosis
Infection with a fungus called Blastomyces dermatitidis. The infection causes symptoms in about 50% of cases. It usually presents as a flu-like illness with fever, chills, productive cough, myalgia, arthralgia and pleuritic chest pain. Some patients fail to recover and develop chronic pulmonary infection or widespread disseminated infection (affecting the skin, bones, and genitourinary tract). It occasionally affects the meninges which cover the brain and spinal cord.
Blasts
"Immature blood cells. Leukemic blasts do not grow and age normally; they proliferate wildly and fail to mature."
Blastula
Term (often used in lower vertebrates) to describe an early stage in the development of an embryo consisting of a hollow sphere of cells enclosing a fluid-filled cavity called the blastocoel. The term blastula sometimes is used interchangeably with blastocyst.
PREVIOUS AND NEXT TERMS--------------------------------------
Blast phase
Refers to advanced chronic myelogenous leukemia. In this phase, the number of immature, abnormal white blood cells in the bone marrow and blood is extremely high. Also called blast crisis.
Blastocystis hominis
The parasitic organism that causes blastocystosis. See Blastocystosis.
Blastocystis infection
See: Blastocystosis.
Blastocystosis
Infection with Blastocystis hominis, a common microscopic parasite found worldwide. Symptoms may include watery or loose stools, diarrhea, abdominal pain, anal itching, weight loss, and excess gas. Some people have no symptoms. The organism can remain in the intestines for weeks, months, or years. Diagnosis requires finding it in the stool, How Blastocystis is transmitted is unknown, although the number of people infected seems to increase in areas where sanitation and personal hygiene is inadequate. Treatment is with the antibiotics metronidazole or iodoquinol.
Blastokinin
See: Uteroglobin.
Blastoma
Blastomyces dermatitidis
The fungus that causes a disease called blastomycosis.
Blastomycosis
Infection with a fungus called Blastomyces dermatitidis. The infection causes symptoms in about 50% of cases. It usually presents as a flu-like illness with fever, chills, productive cough, myalgia, arthralgia and pleuritic chest pain. Some patients fail to recover and develop chronic pulmonary infection or widespread disseminated infection (affecting the skin, bones, and genitourinary tract). It occasionally affects the meninges which cover the brain and spinal cord.
Blasts
"Immature blood cells. Leukemic blasts do not grow and age normally; they proliferate wildly and fail to mature."
Bleb
A bladder-like structure more than 5 mm in diameter with thin walls that may be full of fluid. Also called a bulla.
Blender experiment
See: Hershey-Chase experiment.
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