Pannus


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Related to Pannus: corneal pannus, abdominal pannus

pannus

[′pan·əs]
(medicine)
Vascularization accompanied by deposition of connective tissue beneath the cornal epithelium.
Overgrowth of connective tissue on the articular surface of a diarthrodial joint.
(meteorology)
Numerous cloud shreds below the main cloud; may constitute a layer separated from the main part of the cloud or attached to it.

Pannus

 

a morbid condition of the limbus and cornea of the eye resulting from a local chronic inflammation. It occurs most often in conjunction with trachoma but may also develop with tubercular-allergic keratoconjunctivitis. The infiltrate formed beneath the epithelium of the cornea is replaced by scar tissue; this causes a significant decrease in vision. Treatment consists of eliminating the primary disease. In the case of trachomatous pannus, surgery is recommended.

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The penis was exposed by incising the pannus midline from the penile sinus superiorly, revealing a degloved and inverted penile shaft skin tethered only by 2 cm on its ventral side.
Significant pannus led to valve cusps immobilization in 22 (55.
Although gradients were reported in preoperative transthoracic echocardiography, there were neither growth of pannus and structural integrity loss nor lipid infiltration over the valve (Fig.
An inflammatory response is initiated by the activated CD4+ helper T cells, stimulating the release of monocytes, macrophages, and synovial fibroblasts to produce the proinflammatory cytokines interleukin-1, interleukin-[gamma], and TNF-[alpha] and to secrete matrix metalloproteinases through cell-surface signaling by means of CD69 and CD11, as well as through the release of soluble mediators such as interferon-[gamma] and interleukin-17; this ultimately results in synovitis and pannus formation.
The third stage is fibrous ankylosis resulting from the invasion of the pannus by tough fibrous tissue, and finally there is bony ankylosis as the fibrous tissue becomes calcified.
Cytokines, primarily tumor necrosis factor (TNF)-a and interleukin-1, mediate the formation of the pannus and maintain its destructive capacity (2).
Two parameters for assessing inflammatory responses, infiltration of leukocytes (white blood cells) and pannus (destructive joint tissue) severity, showed a clear dose-dependent improvement with 2ME2 treatment.
Schwartz said, "I usually prefer it over sutures or staples, especially if they have a lower incision where the pannus hangs over.
Daily, oral dosing of AVL-292 is efficacious in the Collagen Induced Arthritis model, reducing arthritis scores as well as inflammation, pannus, cartilage damage and bone erosion.
Histopathological studies showed the evidence of EVNS in suppressing chronic inflammation, pannus formation and bone destruction of AA in rats.
The protection effect mediated by CEL-2000 treatment against RA was also demonstrated histologically with significant reductions in: 1) inflammation, 2) cartilage destruction, 3) bone resorption, and 4) pannus membrane formation in the synovial space compared to untreated controls.
The complications related to S-E caged-ball valves are; thromboembolism, hemolytic anemia, valve failure, cloth wear, endocarditis, and pannus formation (2).