Year: 2011

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I is for internal structure (LESION)

Next is the internal structure of a lesion.  There are only three primary descriptions with this letter.  They are radiolucent, radiopaque and mixed radiolucent/radiopaque. Radiolucent has two subcategories.  The first is unilocular.  This refers to a lesion/entity that is completely radiolucent.  The second is multilocular.  This refers to a lesion/entity…
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Case of the Week: Remnant lamina dura

This week I am showing a case of remnant lamina dura.  Lamina dura is the bony socket which houses a tooth in the jaws.  When teeth are extracted the lamina dura is usually resorbed with no evidence of the bony socket after healing.  Sometimes there may be portions of the…
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S is for shape (LESION)

Now onto the overall shape (S) of a lesion or entity.  First it is important to know that not all lesions/entities will have a definitive shape.  You can state that there is no identifiable shape to the lesion/entity. There are many different shapes in the world, but only a few…
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Case of the Week: Internal resorption

This week I have a case of internal resorption that is small and still possible to treat without extraction.  There is a linear radiolucent area over the root of the mandibular right central incisor (#25).  Note that the radiolucent area is continuous with the root canal.  Treatment to retain the…
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E is for edge (LESION)

Now onto E for edge.  This is the edge or border of a lesion or entity.  Is the edge well-defined (meaning you can trace it entirely), well-localized (you can trace part of the edge but not all of it) or ill-defined (you can’t tell where the lesion starts or ends…