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Chapter 1 Vocab

Group 4 Arielle Holloway, Neha Johnson, Valerie Norton, Christy Raw and Jackie Williams

• nodule- a lesion up to 1 cm in size that is solid and can be detected during palpation. The lesion can be located above, at, or below the skin level.

• palpation- Using touch and slight compression of an area to assess characteristics of a lesion such as texture and consistancy. Descriptive terms could be soft, firm, fluid filled, etc.

• Erythema- increased redness in an area caused by an increase in blood flow to the tissue, like the gingiva. This can be caused by injury, infection, or inflammation.

• Pallor- A noticeable paleness of a tissue. It can be caused by such things as illness, shock, stress, and anemia.

Bulla• A circumscribed, elevated

lesion that is more than 5mm in diameter, usually contains serous fluid, and looks like a blister.

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Lobule• A segment or lobe that is part

of a whole; may appear fused together.

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Macule• An area usually distinguished

by being a different color than surrounding tissue; flat and does not protrude above the surface of normal tissue. Freckles fall into this category.

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Papule• A small, circumscribed lesion

usually less than 1cm in diameter and is elevated and protrudes above the surface of surrounding normal tissue. Some moles are papules.

Pedunculated• Lesion attached by a stem-

like base similar to that of a mushroom.

Root Resorption• Seen radiographically when

the apex of the tooth appears shortened or blunted and irregularly shaped; occurs as a response to stimuli, which can include a cyst, tumor, trauma or orthodontic treatment.

Scalloping around the Root• A radiolucent lesion that

extends between the roots, as seen in a traumatic bone cyst; like a small balloon, this lesion appears to extend up the periodontal ligament.

Unilocular• Having one compartment or

unit that is well defined or outlined, as in a simple Radicular cyst.

Multilocular• Many round locules like a

cluster of grapes

Well circumscribed• Describes a lesion with

borders that are clearly defined with exact margins and extent.

Corrugated• The lesion has a wrinkled

appearance. An example of this could be leukoplakia.

Vesicle• A raised lesion that is less

than 1 cm in diameter and is filled with serous fluid, which is clear and a little slimy.

Fissure• This is describing an area with

more depth that appears furrowed or almost channeled in areas. An example of this is fissured tongue.

Pustules• This is a small raised area of

the epidermis layer that is full of clear liquid or sometimes yellowish liquid. When I see this word, I often think of a pimple or zit

Sessile• This term is describing the

base of the lesion as wide and flat, where as other lesions tend to have a skinnier base.

Coalescence• The process of parts fusing to

make a whole

Papillary• A small projection found in

groups that may be nipple shaped.

Diffuse• When the borders of a lesion

are so faint that there is not a way to correctly measure it.

Radiopaque• Light or white area on an x-

ray due to the inability of radiant energy to penetrate the structure; the denser the structure the lighter or whiter it appears on the x-ray

Radiolucent• An object is less dense

allowing radiant energy to pass making it appear dark or black.