Bethesda System, The
ABBR: TBS A system for reporting cervical or vaginal cytologic diagnoses. Use of TBS replaces the numerical designations (Class 1 through 5) of the Papanicolaou smear with descriptive diagnoses of cellular changes. Cellular changes are identified as benign; reactive, such as those due to inflammation, atrophy, radiation, or use of an intrauterine device; or malignant. Hormonal evaluation of vaginal smears is provided. Low-grade squamous intraepithelial lesions include what was previously called grade 1 cervical intraepithelial neoplasia (CIN 1) and cellular changes due to human papilloma virus, that is, koilocytosis. High-grade squamous intraepithelial neoplasia includes what was once identified as CIN 2 and CIN 3.
SEE: cervical cancer; SEE: cervical intraepithelial neoplasia
Nursing Central is an award-winning, complete mobile solution for nurses and students. Look up information on diseases, tests, and procedures; then consult the database with 5,000+ drugs or refer to 65,000+ dictionary terms. Complete Product Information.