Du Bois sign

Du Bois sign (/djuː ˈbwɑː/; from the French, meaning "of the woods") is a clinical sign in which there is a double contour shadow in the radiograph of the heart, indicating the presence of pericardial effusion. It is named after the French physician Paul Du Bois who first described it.

Etymology

The term "Du Bois sign" is derived from the name of the French physician Paul Du Bois, who first described this sign. The term "sign" in this context is used to denote a clinical or radiographic feature that may indicate a particular disease or condition.

Related Terms

Pericardial effusion: An abnormal accumulation of fluid in the pericardial cavity.
Radiograph: An image produced on a sensitive plate or film by X-rays, gamma rays, or similar radiation, and typically used in medical examination.
Heart: The organ in your chest that sends the blood around your body.
Clinical sign: Observable evidence of medical condition that is seen or felt by doctors rather than reported by the patient.