Moniz sign
Moniz Sign
Moniz sign (/moʊˈniːz/; named after Portuguese neurologist António Egas Moniz) is a clinical sign in medicine. It is used to describe the presence of non-pulsatile, vascular, retinal lesions in patients with subacute bacterial endocarditis (SBE).
Etymology
The term "Moniz sign" is named after António Egas Moniz, a Portuguese physician and neurologist who first described the sign. Moniz is also known for his pioneering work in the development of cerebral angiography.
Clinical Significance
Moniz sign is a rare but important clinical sign in the diagnosis of subacute bacterial endocarditis (SBE). It is characterized by the presence of non-pulsatile, vascular, retinal lesions. These lesions are caused by septic emboli that originate from the heart valves and lodge in the retinal vessels. The presence of Moniz sign can help clinicians to diagnose SBE in its early stages, which is crucial for effective treatment and prognosis.
Related Terms
- Roth's spots: Retinal hemorrhages with white or pale centers, often associated with bacterial endocarditis.
- Osler's nodes: Painful, red, raised lesions found on the hands and feet, also associated with bacterial endocarditis.
- Janeway lesions: Painless, small, erythematous or haemorrhagic macular or nodular lesions on the palms or soles, indicative of bacterial endocarditis.
See Also
- António Egas Moniz
- Subacute bacterial endocarditis
- Cerebral angiography
- Roth's spots
- Osler's nodes
- Janeway lesions
External links
- Medical encyclopedia article on Moniz sign
- Wikipedia's article - Moniz sign
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