endometrial thickness
Ultrasound measurement of the endometrial lining thickness, used to assess risk of endometrial pathology in postmenopausal bleeding.
Full Definition
Endometrial thickness refers to the sonographic measurement of the endometrial lining as visualized on transvaginal ultrasound. In postmenopausal women presenting with bleeding, endometrial thickness is a crucial parameter for risk stratification. A thickness of 4mm or less in postmenopausal women is generally considered reassuring, while measurements above this threshold may warrant further investigation with endometrial biopsy or hysteroscopy. In premenopausal women, endometrial thickness varies throughout the menstrual cycle and must be interpreted in context. This measurement is fundamental in the diagnostic workup of abnormal uterine bleeding and endometrial cancer screening.
Usage
Usage note: Always include the measurement unit (mm) and specify menopausal status when reporting values.
In Context
- "Transvaginal ultrasound revealed an endometrial thickness of 8mm in this postmenopausal patient with bleeding, prompting endometrial biopsy." — Diagnostic workup
- "The endometrial thickness of 2mm made endometrial cancer highly unlikely in this patient with postmenopausal bleeding." — Ultrasound report