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- The lucent cleft sign is seen anteriorly, as an area of hyperlucency above the superior end plate of the vertebra. It is the result of a partial tear of the annulus.
pubmed.ncbi.nlm.nih.gov › 1776006
Jul 26, 2024 · Osteolytic lesions, lytic or lucent bone lesions are descriptive terms for lesions that replace normal bone or with a vast proportion showing a lower density or attenuation than the normal cancellous bone. This comprises lesions with fatty liquid and solid soft tissue components.
- Ammar Ashraf
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Most expansile, lucent lesions are located in the medullary space of the bone. However, we can further define the location of the lesion by noting its relationship to the physis. Many lesions tend to occur in a “favorite” part of the bone. The favored locations are listed in the figure below.
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The lucent cleft sign is a sign of soft tissue injury. It was first described as a sign of acute cervical injury but it is neither confined to cases of trauma nor the cervical region. The sign is also seen in degenerative disease and in the lumbar spine.
Searches related to define lucent cleft area
Apr 17, 2024 · Mnemonics for the differential diagnosis of lucent/lytic bone lesions include: FEGNOMASHIC. FOG MACHINES. They are anagrams of each other and therefore include the same components. They are by no means exhaustive lists, but are a good start for remembering a differential for a lucent/lytic bone lesion and will suffice for >95% of the time 1.
The lucent cleft sign, mainly seen with the spine in extension, can be visualized in the cervical and lumbar regions. It represents gas, most of which is probably nitrogen, in the region where the disc has partially torn away from the vertebral body endplate.
After participating in this educational activity, the radiologist should be better able to diagnose the common lucent lesions in the vertebral body based on the imaging features of the lesions and patient characteristics.
Sep 27, 2020 · A cleft may also occur within the pars interarticularis (spondylolysis), pedicle (retrosomatic cleft), or lamina (retroisthmic cleft). The characteristic location, sclerotic margins, and associated degenerative changes are typical features that allow distinction from acute fractures.
