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Sclerosis (from Ancient Greek σκληρός (sklērós) ' hard ') is the stiffening of a tissue or anatomical feature, usually caused by a replacement of the normal organ-specific tissue with connective tissue. The structure may be said to have undergone sclerotic changes or display sclerotic lesions, which refers to the process of sclerosis.
Multiple sclerosis is an autoimmune disease, primarily mediated by T-cells. [15] The three main characteristics of MS are the formation of lesions in the central nervous system (also called plaques), inflammation, and the destruction of myelin sheaths of neurons.
Osteosclerosis is a disorder characterized by abnormal hardening of bone and an elevation in bone density. It may predominantly affect the medullary portion and/or cortex of bone.
Idiopathic osteosclerosis, also known as enostosis or dense bone island, is a condition which may be found around the roots of a tooth, usually a premolar or molar. [2] It is usually painless and found during routine radiographs as an amorphous radiopaque (light) area around a tooth.
Lichen sclerosus; Other names: Balanitis xerotica obliterans, lichen sclerosus et atrophicus, [1] Lichen sclerosis et atrophicus, [2] lichen plan atrophique, lichen plan scléreux, Kartenblattförmige Sklerodermie, Weissflecken Dermatose, lichen albus, lichen planus sclerosus et atrophicus, dermatitis lichenoides chronica atrophicans, kraurosis vulvae [3]
Main symptoms of multiple sclerosis Symptoms and findings in multiple sclerosis. Multiple sclerosis can cause a variety of symptoms varying significantly in severity and progression among individuals: changes in sensation (hypoesthesia), muscle weakness, abnormal muscle spasms, or difficulty moving; difficulties with coordination and balance; problems in speech or swallowing (), visual ...
Drawing of sclerotic lesions from Babinski's thesis "Etude anatomique et clinique de la sclérose en plaques", 1885. Multiple sclerosis (MS) can be pathologically defined as the presence of distributed glial scars in the central nervous system that must show dissemination in time (DIT) and in space (DIS) to be considered MS lesions. [1] [2]
Lipodermatosclerosis is most commonly diagnosed in middle-aged women. [ 3 ] The origin of lipodermatosclerosis is probably multifactorial, involving tissue hypoxia, leakage of proteins into the interstitium, and leukocyte activation.