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The polka dot sign is best seen in CT imaging as multiple small, circular, sclerotic areas are seen within the vertebral body, representing cross-sections of the thickened vertical trabeculae. The background may appear lucent or hypodense due to vascular spaces and fat replacement. [ 2 ]
However, white matter atrophy alone is not sufficient for this disease; evidence of subcortical dementia is also necessary. [9] The histologic findings are diffuse, irregular loss of axons and myelin accompanied by widespread gliosis, tissue death due to an infarction or loss of blood supply to the brain, and changes in the plasticity of
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. Plain radiographs are a valuable tool for detecting and classifying osteosclerotic disorders. [1] [2] It can manifest in localized or generalized osteosclerosis.
More than 80% of patients also reported abnormalities of the skull. Common symptoms include craniofacial hyperostosis, which is the excessive growth of bone in the skull and face. Skull base sclerosis, periorbital sclerosis, hypoplastic mandibular condyle, and absent paranasal or frontal sinuses are present in rare cases. [6] [7]
Dementia with Lewy bodies (DLB) is a type of dementia, a group of diseases involving progressive neurodegeneration of the central nervous system. [11] It is one of the two Lewy body dementias, along with Parkinson's disease dementia. [12] Dementia with Lewy bodies can be classified in other ways.
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.
Selma Blair is sharing an update on her health following new advances in multiple sclerosis treatment. Blair walked the red carpet at Elle's Women in Hollywood 2024 event without a walking cane or ...
Osteomyelitis is an infective process that encompasses all of the bone (osseous) components, including the bone marrow. When it is chronic, it can lead to bone sclerosis and deformity. [citation needed] Chronic osteomyelitis may be due to the presence of intracellular bacteria. [19]