Aspiration cytology Health Dictionary

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Aspiration Cytology: From 1 Different Sources

the *aspiration of specimens of cells from tumours or cysts through a hollow needle, using a syringe, and their subsequent examination under the microscope after suitable preparation (by staining, etc.). The technique is now used widely, especially for superficial cysts or tumours, and has become a specialized branch of diagnostic pathology. See also fine-needle aspiration cytology.
Health Source: Oxford | Concise Colour Medical Dictionary
Author: Jonathan Law, Elizabeth Martin

Cytology

Study of cells removed from surface of organs (exfoliated cells) for the purpose of diagnosing cancer; e.g., Papanicolaou smear.... cytology

Aspiration

Aspiration means the withdrawal of ?uid or gases from the natural cavities of the body or from cavities produced by disease. It may be performed for curative purposes; alternatively, a small amount of ?uid may be drawn o? for diagnosis of its nature or origin. An instrument called an aspirator is used to remove blood and ?uid from a surgical-operation site – for example, the abdomen or the mouth (in dentistry).

PLEURISY with e?usion is a condition requiring aspiration, and a litre or more of ?uid may be drawn o? by an aspirator or a large syringe and needle. Chronic abscesses and tuberculous joints may call for its use, the operation being done with a small syringe and hollow needle. PERICARDITIS with e?usion is another condition in which aspiration is sometimes performed. The spinal canal is aspirated by the operation of LUMBAR PUNCTURE. In children the ventricles of the brain are sometimes similarly relieved from excess of ?uid by piercing the fontanelle (soft spot) on the infant’s head. (See HYDROCEPHALUS.)... aspiration

Needle Aspiration

See biopsy.... needle aspiration

Fine-needle Aspiration Cytology

(FNA cytology) a technique in which a thin hollow needle is inserted into a mass to extract a tissue sample for microscopic examination. It is useful for detecting the presence of malignant cells, particularly in lumps of the breast and thyroid. See also aspiration cytology.... fine-needle aspiration cytology

Liquid-based Cytology

(LBC) a technique used for analysing *cervical smears taken for *cervical screening. The specimen is collected using a brush or spatula and then mixed with a liquid preservative fluid. In the laboratory, this fluid is spun and filtered to remove blood and other extraneous material, leaving a thin layer of cells that is spread on a microscope slide and examined. LBC yields specimens that are easier to screen and give more accurate results than those obtained by the traditional Pap test.... liquid-based cytology

Manual Vacuum Aspiration

(MVA) see vacuum aspiration.... manual vacuum aspiration

Meconium Aspiration

a condition occurring during childbirth in which the baby inhales meconium into the lungs during delivery. This can cause plugs in the airways and the baby may become short of oxygen (hypoxic). Treatment is to assist breathing if necessary, with physiotherapy and antibiotics.... meconium aspiration

Microsurgical Epididymal Sperm Aspiration

see MESA.... microsurgical epididymal sperm aspiration

Percutaneous Epididymal Sperm Aspiration

see PESA.... percutaneous epididymal sperm aspiration

Vacuum Aspiration

the removal by suction of the products of conception to terminate a pregnancy or evacuate the uterus following miscarriage. Carried out under local anaesthetic up to the 12th week of pregnancy, it uses a hand-held syringe (manual vacuum aspiration, MVA) or an electric pump (electric vacuum aspiration, EVA) to create suction.... vacuum aspiration

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