nidus


Also found in: Dictionary, Thesaurus, Medical, Wikipedia.

nidus

[′nīd·əs]
(medicine)
A focus of infection.
(zoology)
A nest or breeding place.
References in periodicals archive ?
Groups of TB patients with rates of HIV infection significantly greater than the 9% rate for the United States overall included the following: IDUs (35%), NIDUs (27%), homeless persons (22%), non-Hispanic blacks (17%), correctional-facility inmates (16%), persons aged 25-44 years (16%), alcohol abusers (15%), males (11%), persons aged 45-64 years (11%), and U.S.-born persons (11%) (Table 2).
The arteriogram allows the visualization of feeding vessels into the AVM and AVM nidus, as well as the draining veins; MRI does not have this capability.
The most common nidus in urine are cells that are shed from the bladder wall or urethra as a result of normal bladder regeneration, urinary tract infections, vitamin-A deficiencies, or high-estrogen feeds.
Evaluation for an underlying cause requires thorough examination for a nidus of infection precipitated by a foreign body, necrotic tissue or fibrin.
Division of the vein running across the subarachnoid space from the dural nidus, to the coronal venous plexus is usually sufficient, although destruction of the fistula itself is often performed[4].
Meanwhile, the original nidus seen in the MRI lessened but did not disappear [Figure 1]h.
Classically, they are described as cortically based, diaphyseal or metaphyseal with a radiolucent nidus within an area of surrounding sclerosis.
Treatment of an osteoid osteoma of the trapezium involves surgical removal of the nidus [2,4].
Their angioarchitecture is complex and includes arterial feeders, a net of dysplastic vessels, so-called nidus and draining veins (12).
Because of angiographic and anatomical features of the arteriovenous malformation (deep location and deep venous drainage, but also small arteriovenous malformation nidus size), radiosurgery was the preferred treatment modality.
Nassiri described congenital high-flow AVMs as "convoluted networks of blood vessels with poorly differentiated endothelial cells that have neither a venous nor an arterial designation; this entity, otherwise known as a nidus, sits between the feeding arteries and the draining veins." Treatment aims to eliminate the flow within that nidus.