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Radiopaque volumes of material have white appearance on radiographs, compared with the relatively darker appearance of radiolucent volumes. For example, on typical radiographs, bones look white or light gray (radiopaque), whereas muscle and skin look black or dark gray, being mostly invisible (radiolucent).
A cementoma may present itself on a radiograph or x-ray and appear as an radiopaque mass depending on its stage and mass within the lower dental arch. In early stages, the mass will appear as radiolucent. In terminal stages, the mass becomes radiopaque and a radiolucent rim will be visible. [3]
The radiographic features of periapical inflammatory lesions vary depending on the time course of the lesion. Because very early lesions may not show any radiographic changes, diagnosis of these lesions relies solely on the clinical symptoms. More chronic lesions may show lytic (radiolucent) or sclerotic (radiopaque) changes, or both.
Some 60% of all renal stones are radiopaque. [ 61 ] [ 62 ] In general, calcium phosphate stones have the greatest density, followed by calcium oxalate and magnesium ammonium phosphate stones. Cystine calculi are only faintly radiodense , while uric acid stones are usually entirely radiolucent .
The PDL appears as the periodontal space of 0.4 to 1.5 mm [citation needed] on radiographs, a radiolucent area between the radiopaque lamina dura of the alveolar bone proper and the radiopaque cementum.
For instance, one user said, “Summer vs winter. Black women also get tan in the summer and pale in the winter like everyone else.” “That is the beauty of being black,” another explained.
Stones may be radiopaque, i.e. they will show up on conventional radiographs, or radiolucent, where they not be visible on radiographs (although some of their effects on the gland may still be visible). They may also symptomatic or asymptomatic, according to whether they cause any problems or not.
Cementoblastoma is slow growing well-defined, radiopaque mass, with a radiolucent peripheral line, that overlies and obliterates the tooth root typically presenting with root resorption. [6] It has a rounded or sunburst appearance. Differential diagnosis include severe hypercementosis, chronic focal sclerosing osteomyelitis, and osteoma. Histologic