oral smear

Thân thiện

A doctor uses a swab to collect an oral smear from a patient.

Definition

Noun: 1. A diagnostic specimen: An oral smear is a medical sample collected by gently scraping cells or material from the lining of the mouth (the oral mucosa). This smear is then examined, typically under a microscope, for diagnostic purposes. 2. A type of alimentary tract smear: Specifically, it is a smear taken from the mouth, which is the beginning of the alimentary (digestive) tract.

Usage Examples

• Noun:
  • The doctor took an oral smear to check for fungal infections like thrush.
  • Analysis of the oral smear revealed abnormal cells, requiring further investigation.
  • An oral smear is a quick and non-invasive procedure for initial screening.

Advanced Usage

• In Cytology: In a medical laboratory context, an is prepared on a glass slide, fixed, stained, and then examined by a cytologist or pathologist to study cell morphology.
• In Research: can be used in genetic or microbiological studies to collect DNA or to analyze the oral microbiome.

Variants and Related Words

• Buccal smear: A very similar type of smear specifically from the inner cheek (buccal mucosa), often used for collecting cells for DNA analysis.
• Pap smear (Papanicolaou smear): A related diagnostic procedure involving a smear of cells, but taken from the cervix, not the mouth.
• Smear test: A general term for any diagnostic test involving the microscopic examination of a smear of cells.

Synonyms

• Mouth smear
• Oral cytology specimen

Notes on Meaning

The term oral smear refers strictly to the sample or specimen itself—the material collected from the mouth. It is not the name of the procedure (which is "taking an oral smear") nor the name of the test (which would be "oral cytology" or "microscopic examination of an oral smear").

Học thuật

Noun

1. alimentary tract smear of material obtained from the mouth