exfoliative cytology

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cytology

[si-tol´o-je]

the study of cells, their origin, structure, function, and pathology. adj., adj cytolog´ic.

aspiration biopsy cytology (ABC) the microscopic study of cells from superficial or internal lesions obtained by aspiration biopsy.

exfoliative cytology microscopic examination of cells desquamated from a body surface or lesion, done to detect malignancy or microbiologic changes, to measure hormonal levels, and for other purposes. The cells may be obtained by such procedures as aspiration, washing, smear, and scraping, and the technique may also be applied to secretions such as sputum, urine, abdominal fluid, prostatic secretions, and vaginal secretions.

ex·fo·li·a·tive cy·tol·o·gy

the examination, for diagnostic purposes, of cells denuded from a neoplasm (or other type of lesion) and recovered from the sediment of the exudate, secretions, or washings from the tissue (for example, sputum, vaginal secretion, gastric washings, urine).

Synonym(s): cytopathology (2)

Farlex Partner Medical Dictionary © Farlex 2012

ex·fo·li·a·tive cy·tol·o·gy

(eks-fō'lē-ă-tiv sī-tol'ŏ-jē)

The examination, for diagnostic purposes, of cells denuded from a neoplasm or an epithelial surface, recovered from exudate, secretions, or washings from tissue (e.g., sputum, vaginal secretion, gastric washings, urine).
Synonym(s): cytopathology (2) .

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

exfoliative cytology

A method of diagnosing cell abnormalities, such as cancer, by examining cells shed, brushed or scraped from a body surface.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

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References in periodicals archive ?

Clinicopathological correlation of micronucleus in oral squamous cell carcinoma by exfoliative cytology. J Oral Maxillofac Pathol 2008;12:2-7.

Comparative Study of Frequency of Micronuclei Using Papanicolaou Stain in Potentially Malignant Disorders and Oral Squamous Cell Carcinoma

[1,16] These findings, which demonstrate the lack of efficiency of exfoliative cytology, may be explained by nonrepresentative sampling and/or individual subjectivity, [12,15] since this was a retrospective study in which the cytological tests were not performed by the same examiner.

Efficacy of oral exfoliative cytology in diagnosis of oral cancer

Moreover it is emphasized that traditional exfoliative cytology has its limitations nonetheless introduction of special techniques like computer assisted oral brush biopsy and liquid based cytology have shown much better sensi- tivity and less false negative results and oral cytology seems promising to be used as a screening test like that used in cervical smears in near future.

CYTOMORPHOMETRY OF BUCCAL SMEARS OF NICOTIANA TABACUM (NASWAR) USERS: A PILOT STUDY

However, children in the EG showed more yeasts adhering to their epithelial cells in the exfoliative cytology examination.

Candida spp. adherence to oral epithelial cells and levels of IgA in children with orthodontic appliances

Overall, the results of this study suggest that, GFNAC system, with its employment restricted to exfoliative cytology, it cannot be a substitute for CFAC in the cytodiagnosis of breast lumps, though it has a high sensitivity; but due to its low sensitivity and complexity.

Impact of implementing grading fine needle aspiration cytology in diagnosis of breast cancer amongst Sudanese women

George Papanicolaou and colleagues published their research with exfoliative cytology samples of the breast in 1958.

The role of nipple-aspirate fluid cytology in breast-cancer risk screening

For this reason, many urologists use an adjunctive diagnostic procedure, such as exfoliative cytology. Cytology, however, has several disadvantages, including its reliance for accuracy on the skill of the pathologist, its relative insensitivity to grade I (well-differentiated) tumors, and a lack of standardization of methods (7, 8).

Multicenter trial of the quantitative BTA TRAK assay in the detection of bladder cancer

When the discipline of exfoliative cytology was first launched in the late 1940s, the primary purpose of the Papanicolaou smear was to detect cervical cancer, which at that time was a scourge, almost the equal of breast cancer.

The adequate cervical smear: a modern dilemma

Diagnosis of lung cancer by aspiration biopsy and a comparison between this method and exfoliative cytology. Acta Cytol 1967;11(2):114-9.

CYTOPATHOLOGICAL ANALYSIS OF UNGUIDED TRANSTHORACIC FINE NEEDLE ASPIRATION CYTOLOGY AND ITS UTILITY IN DIAGNOSIS

[4] However, exfoliative cytology of oral mucosa is an effective and rapid procedure which can also be done for detection of granulomatous lesions.

Oral tuberculosis diagnosed from exfoliative cytology--two case reports

One of the main advantages of cytology is that, for both primary diagnosis and clinical staging, specimens can be obtained with many minimally invasive techniques, including superficial aspirations, computed tomography-guided aspirations, ultrasound-guided aspirations, endoscopic ultrasound-guided aspirations, and collection of body fluids and brushings (exfoliative cytology).

Lung Carcinoma Predictive Biomarker Testing by Immunoperoxidase Stains in Cytology and Small Biopsy Specimens: Advantages and Limitations

Different diagnostic methods such as routine histopathology (H and E-stained sections), exfoliative cytology, and immunohistochemistry are available today.

Cytotoxic and Genotoxic biomonitering in patients exposed to radiation therapy a cytological study