nidus


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nidus

 [ni´dus] (L.)
1. a nest or cluster.
2. the point of origin or focus of a disease process.
3. nucleus (def. 2). adj., adj ni´dal.

ni·dus

, pl.

ni·di

(nī'dŭs, nī'dī),
1. A nest.
2. The nucleus or central point of origin of a nerve.
3. A focus of infection.
4. The nucleus of a crystal; the coalescence of molecules or small particles that is the beginning of a crystal or similar solid deposit.
5. The focus of reduced density at the center of an osteoid osteoma, on bone radiographs.
[L. nest]

nidus

(nī′dəs)
n. pl. ni·duses or ni·di (-dī)
1. A central point or focus of infection by bacteria or other pathogens.
2. A point or place at which something originates, accumulates, or develops, such as the center around which a calculus forms.

ni·dus

, pl. nidi (nī'dŭs, -dī)
1. A nest.
2. The nucleus or central point of origin of a nerve.
3. A focus of infection.
4. The coalescence of molecules or small particles that is the beginning of a crystal or similar solid deposit.
5. The focus of reduced density at the center of an osteoid osteoma, on bone radiographs.
[L. nest]

nidus

A localized collection, or focus, of infective organisms. From the Latin nidus , a nest.

ni·dus

, pl. nidi (nī'dŭs, -dī)
1. A nest.
2. Nucleus or central point of origin of a nerve.
3. Focus of infection.
[L. nest]
References in periodicals archive ?
All TB patients should be offered HIV testing where feasible, especially IDUs, NIDUs, homeless persons, non-Hispanic blacks, correctional-facility inmates, and alcohol abusers.
Caption: Figure 3: Computed tomography showing sclerotic nidus surrounded by radiolucent halo (arrow).
Subsequent MRI and digital subtraction angiography showed a right temporal AVM with the nidus dimension approximately 2 cm and branches supplied mainly from the right middle cerebral artery, some smaller branches from the right posterior communicating artery, and drainage through the basal vein of Rosenthal into the sinus rectus (modified Spetzler-Martin AVM grade 2) (Figures 3 and 4).
"It's like a low-pressure sump and it will recruit collaterals vigorously, so you have to eliminate that nidus." A variety of different embolic agents, some off label, may be used for high flow AVMs.
Kimura et al., "A case of choledocholithiasis with an endoclip nidus, 6 months after laparoscopic cholecystectomy," Surgical Endoscopy, vol.
In end-stage middle ear infection, epithelium undergoes metaplasia with new bone proliferation of tympanic bulla which serves as a nidus of infection.
Osteiod Osteoma consists of woven bone and osteoid, which is surrounded by halo of reactive sclerotic bone, having less than 1.5 cm of average site of nidus. In 85% of the total number of cases, plain radiographs demonstrate the nidus.2 The size of the nidus is quite small and furthermore, is commonly located in an area where a plain radiograph has a high probability of missing the lesion.
(4-6) GKRS delivers a high single procedural radiation dose to a target volume of tumor or vascular malformation and provides various beneficial effects including excellent control of local tumor or nidus growth, shorter hospital stay, lower cost, lower mortality and morbidity, minimum invasiveness, and wide access of GKRS for repeated treatments.
Osteoblastoma does not have either a nidus or the typical sclerosis, which surrounds the ordinary osteoid osteoma.
A dose of 22 Gy was prescribed to the 56% isodose and delivered in three fractions on the nidus at C1 level, and 18 Gy was prescribed to the 60% isodose and delivered in two fractions on the nidus at C2 level.
Entertainment will be provided by a Welsh National Opera string ensemble, renowned Welsh folk group Mabon and the award-winning Gwent-based Nidus Children's choir.
Arriving at 6am on the day of the Half Marathon, Elizabeth and a team of volunteers decorate a room at Cardiff's City Hall and arrange the catering, thanks to donations from many local suppliers, and entertainment which is provided by Nidus Children's Choir from Cwmbran.