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Calcification is the accumulation of calcium salts in a body tissue. It normally occurs in the formation of bone, but calcium can be deposited abnormally in soft tissue, [1] [2] causing it to harden. Calcifications may be classified on whether there is mineral balance or not, and the location of the calcification. [3]
Primary familial brain calcification [1] (PFBC), also known as familial idiopathic basal ganglia calcification (FIBGC) and Fahr's disease, [1] is a rare, [2] genetically dominant or recessive, inherited neurological disorder characterized by abnormal deposits of calcium in areas of the brain that control movement.
vascular calcification, high hematocrit, artifacts The dense MCA sign is a dense artery sign observed on non-contrast computed tomography (CT) of the brain and is an important early marker of acute ischemic stroke involving the middle cerebral artery territory. [ 1 ]
Corpora arenacea (singular: corpus arenaceum, [1] also called brain sand or acervuli [2] [3] or psammoma bodies [4] or pineal concretions [4]) are calcified structures in the pineal gland and other areas of the brain such as the choroid plexus. Older organisms have numerous corpora arenacea, whose function, if any, is unknown.
Pineal gland parenchyma with calcifications Micrograph of a normal pineal gland – very high magnification Micrograph of a normal pineal gland – intermediate magnification. The pineal body in humans consists of a lobular parenchyma of pinealocytes surrounded by connective tissue spaces. The gland's surface is covered by a pial capsule.
It supports the dural sinuses that provide venous and CSF drainage from the brain. [2] It is attached to the crista galli anteriorly, and blends with the tentorium cerebelli posteriorly. [3] The falx cerebri is often subject to age-related calcification, and a site of falcine meningiomas. [2] The falx cerebri is named for its sickle-like shape. [4]
However, the brain may appear normal in the neonatal period. The calcifications are visible both with computed tomography and with magnetic resonance imaging. Magnetic resonance imaging shows additionally diffuse or patchy white matter changes, especially in the periventricular region, the thalami and the internal capsule. Cerebellar and ...
In contrast, dystrophic calcification is caused by abnormalities or degeneration of tissues [2] [3] resulting in mineral deposition, though blood levels of calcium remain normal. These differences in pathology also mean that metastatic calcification is often found in many tissues throughout a person or animal, whereas dystrophic calcification ...