Common Lesions

Question 1

Mole, benign melanocytic lesion

Answer 1

Nevus

Question 2

Freckles

Answer 2

Ephelides

Question 3

Benign melanocytic lesion, macular-flat

Answer 3

Lentigo

Question 4

Benign skin lesion with a stuck on appearance

Answer 4

Seborrheic keratosis

Question 5

Variant of seborrheic keratosis that occurs in 30% of black population

Answer 5

Dermatosis papulosa nigra

Question 6

Precursor lesion for cutaneous SCC, Sandpaper texture.

Answer 6

Actinic keratosis

Question 7

Prominent vessels

Answer 7

Telangectatic capillaries

Question 8

Usually on forehead. Central umbilication

Answer 8

Sebaceous hyperplasia

Question 9

Most common cancer in humans, mask area, rolled borders

Answer 9

Basal cell carcinoma

Question 10

Ectopic sebaceous glands

Answer 10

Fordyce granules

Question 11

Associated with loss of vertical dimension. Candida, some may have co-infection with candida and staph. If external only can used topical application of antifungal/corticosteroid

Answer 11

Angular Cheilitis

Question 12

most common site for recurrent HSV-1 is vermilion border and/or adjacent skin of lips

Answer 12

Herpes Labialis

Question 13

focal increase in melanin; also can occur as reactive melanosis in response to local trauma.

Answer 13

Melanotic Macule

Question 14

focal deposition of mucous. Cause is damage to associated minor salivary gland duct. Treatment is conservative-remove extravasated mucous and associated minor salivary glands.

Answer 14

Mucocele

Question 15

Intracellular edema

Answer 15

Leukoedema

Question 16

Found along occlusal plane

Answer 16

Linea alba

Question 17

• cheek, tongue, lip nibbling/chewing-shredded keratin, at a site(s) accessible to teeth.

Answer 17

Morsicatio bucarrum, linguarum, laborium

Question 18

-benign collection of dense fibrous connective tissue. Conservative removal.

Answer 18

Fibroma

Question 19

immunologically mediated process. Often has “striae” or lacy clinical presentation. Does not wipe off. “Lichenoid mucositis” is a descriptive term which could apply to several conditions.

Answer 19

Lichen Planus

Question 20

comprised of dense, vital lamellar bone.

Answer 20

Maxillary torus

Question 21

-found under sub-optimally fitting RPD or full denture, may also reflect nearly constant wear. Also has been noted with high palatal vault. Conservative excision, new denture.

Answer 21

Inflammatory Papillary Hyperplasia

Question 22

inflamed minor salivary glands of the palate with hyperkeratosis around the orifices. Most commonly seen in pipe smokers; can also be seen with long-term use of hot beverages.

Answer 22

Nicotine Stomatitis

Question 23

overgrowth of chromogenic bacteria and filiform papillae.

Answer 23

Black hairy tongue

Question 24

multiple grooves in tongue, fissured tongue-patients often also have geographic tongue.

Answer 24

Fissured tongue

Question 25

patients may be symptomatic e.g. tongue sensitive to spicy or acidic food, when lesions are present. Ectopic geographic tongue occurs in locations other than dorsal or lateral tongue.

Answer 25

Geographic tongue

Question 26

part of Waldeyer’s ring. Vertical lines at posterior lateral tongue often see lymphoid tissue in that area as well.

Answer 26

Foliate papilla

Question 27

vital lamellar bone. Often bilateral, commonly seen on lingual.

Answer 27

Mandibular tori

Question 28

silver in amalgam stains reticulin fibers in associated connective tissue. If unusual presentation, may need to excise to rule out melanoma

Answer 28

amalgam tattoo

Question 29

rule out an odontogenic source of infection

Answer 29

29. Parulis (intraoral opening of sinus track

Question 30

-most common in mandibular third molars-food, etc. gets caught between the overlying soft tissue (operculum) and crown of partially impacted tooth. Ideally, remove offending tooth and opposing third molar. May need to initially decrease local inflammation e.g. with rinses, then surgery.

Answer 30

Pericoronitis

Question 31

punched out interdental papillae that do not regenerate. Seen in persons with poor oral hygiene and/or poor diet and stress

Answer 31

NUG

Question 32

associated most often with poorly fitting dentures. Conservative excision, construct well-fitting dentures.

Answer 32

Inflammatory Fibrous hyperplasia

Question 33

most often older patients, lower lip frequent site. If thrombosed, will NOT blanch with diascopy.

Answer 33

varix

Question 34

loss of continuity of an epithelial or epidermal covered surface.

Answer 34

Ulcer

Question 35

-immune mediated. Found on freely movable oral mucosa. “Canker sore” laypersons term. Ulcer on an erythematous base

Answer 35

Apthous ulcer

Question 36

associated with NON-oncogenic human papillomaviruses. Color depends on amount of keratin on the surface

Answer 36

Squamous papilloma

Question 37

• rule-out dysplasia. White patch with crisply defined margins that does not rub off and cannot be diagnosed clinically or microscopically as anything else. Perform a biopsy to identify exact nature of the lesion.

Answer 37

Leukoplakia

Question 38

need to do biopsy to confirm. Assess vitality of adjacent teeth.

Answer 38

Periapical cyst

Question 39

develops due to fluid entrapment between crown of impacted tooth and reduced enamel epithelium.

Answer 39

Dentigerous cyst

Question 40

collection of fluid below maxillary sinus. Maxillary sinus lining will be superior to the fluid collection. May get referred pain to maxillary teeth with altitudes e.g. during flying.

Answer 40

Antral pseudocyst

Question 41

look for tooth or teeth with deep caries in associated area.

Answer 41

Condensing osteitis

Question 42

bony protuberances arise from cortical plate. Tori are exostoses.

Answer 42

exostoses

Question 43

– seen on radiograph; dense vital bone, no identifiable etiology, blends with surrounding trabeculae. Also called enostosis or dense bone island.

Answer 43

idiopathic osteosclerosis