thyroid bruit
Pronunciation: THY-roid BROO-ee
Audible vascular sound heard over an enlarged, hypervascular thyroid gland on physical examination.
Full Definition
A thyroid bruit is an abnormal vascular sound detected on auscultation over the thyroid gland, typically indicating increased blood flow through an enlarged and hypervascular gland. This physical finding is most commonly associated with Graves' disease and hyperthyroidism, where increased metabolic activity leads to enhanced vascularization. The bruit is best heard with the diaphragm of the stethoscope over the thyroid lobes and may be accompanied by a palpable thrill. The presence of a thyroid bruit is considered a classic sign of thyrotoxicosis.
Usage
Usage note: Pronounce 'bruit' with French pronunciation (BROO-ee), not as 'brute'.
In Context
- "Physical examination revealed a prominent thyroid bruit consistent with hyperthyroidism." — clinical assessment
- "The thyroid bruit resolved following successful treatment of the patient's thyrotoxicosis." — follow-up note