Oral Pathology Vocab Ch 15

Front 1

Melanocytes

Back 1

effects pigmentation, found in or at the basal (deepest) layer of the epidermis and have long dendritic extensions that extend to the keratinocytes in the more superficial layers of the epidermis, the main function is to protect the skin from harmful ultraviolet rays by producing melanin

Front 2

Melanin

Back 2

black or brown substance that imparts color to the skin

Front 3

Physiologic pigmentation

Back 3

usually found in the gingiva, but can occur throughout the mouth

Front 4

Amalgam tattoo

Back 4

also called focal argyrosis, occur because of amalgam particles becoming imbedded within the tissue

Front 5

Argyria

Back 5

the slate-gray or bluish discoloration of the skin caused by the accumulation of silver salts in the tissue

Front 6

Diascopy

Back 6

may be used to differentiate heavy metals from common gingivitis around the margins of crowns

Front 7

Plumbism

Back 7

lead poisoning, has been a significant problem in children in past decades and is usually due to environmental causes such chipping paint, putty, plaster, pesticides, and lead-lined pipes

Front 8

Minocycline tissue staining

Back 8

black bone staining, caused by ingestion of minocycline, a semisynthetic tetracycline that was introduced in the 1960s, dark staining of hard and soft tissues is associated with the medication when used long term

Front 9

Quid

Back 9

refers to a mixture of substances placed in the mouth and remaining in contact with the mucosa, usually containing one or both of the two basic ingredients, tobacco or areca nut, in raw or any manufactured or processed form

Front 10

Oral submucosa fibrosis (OSF)

Back 10

a premalignant condition seen predominantly in Southeast Asia with the use of betel nut, areca nut, and tobacco products

Front 11

Nevus

Back 11

commonly referred to as a mole and infrewuently seen orally, also known as pigmented nevus, melanocytic nevus, and nevomelanocytic nevus, benign

Front 12

In order of their frequencey list the different forms of nevous

Back 12

the intramucosal nevus, the blue nevus, the compound nevous and the junctional nevus

Front 13

Third classification of nevus

Back 13

intradermal nevus and intramucosal nevus

Front 14

Labial melanotic macules

Back 14

occurs on the lips, focal pigmented lesion

Front 15

Ephelis

Back 15

occur on the lips as a freckle, tend to be less than 0.5cm and are associated with sun exposure

Front 16

Solar lentigos

Back 16

usually seen in older individuals, are much larger then ephelides and tend to persist indefinitely even with sun exposure, more pigmented then ephelides

Front 17

Lentigo maligna

Back 17

when changes occur with oral melanotic macules, such as increased growth or shape, there could be a suspicion of a lesion that is characterized by early atypical melanocytes

Front 18

Laugier-Hunziker syndrome

Back 18

an acquired, benign, macular hyperpigmentation of the lips and oral mucosa, as well as the nails

Front 19

Focal melanosis

Back 19

also called oral melanotic macule, a focal pigmented lesion that occurs on the lip or the intraoral tissues, two types: oral melanotic macule and labial melanotic macule

Front 20

Amelanotic melanoma

Back 20

melanomas that are light in color and blend into the surrounding tissue

Front 21

Biologic therapy

Back 21

stimulates or restores the ability of the immune system to fight cancer, infections and other disease states

Front 22

Smoker's melanosis

Back 22

also called tobacco associated melanosis, caused by the use of tobacco products that stimulate the production of melanocytes within the tissue.

Front 23

Melanoma

Back 23

the third most occurring skin cancer, caused by malignant cells that are capable of producing melanin and may originate from a pigmented nevus, have the ability to spread to other organs within the body in later stages

Front 24

Basal keratinocytes

Back 24

an increase of melanin pigmentation in physiologic pigmentation