Pigmented Lesions Flashcards
Seborrheic keratosis occurs in oral cavity?
Never
Seborrheic keratosis clinical features
well-defined multiple plaques
“stuck on skin” apperance
Seborrheic keratosis seen in who?
common skin lesion of older people
Actinic lentigo is…?
flat brown macule on skin
Actinic lentigo results from?
chronic UV light exposure
Actinic lentigo seen in oral cavity?
never
Actinic lentigo undergoes malignant transformation?
no
Melasma aka?
mask of pregnancy
melasma occurs in what patients?
women who are pregnant or taking oral contraceptives
melasma precipitating factor?
sun exposure
melasma potential for malignant transformation?
none
Oral melanoacanthoma common site?
buccal mucosa
Oral melanoacanthoma what kind of lesion?
benign, reactive, asymptomatic
Oral melanoacanthoma clinical features?
dark brown/black
Smooth and flat
Rapid increase in size
Melanotic macule appearance?
flat brown discoloration
Melanotic macule results from UV light?
NO
Melanotic macule common location?
lower lip near vermillion border
Buccal mucosa
Gingiva
Palate
Where does junctional nevus occur?
along basal cell layer
Where do compound nevus occur?
along basal cell layer and CT
Blue nevus most common location?
hard palate
Blue nevus clinical features?
Macule/dome shaped
Blue or black
amalgam tattoo appearance?
black/blue, seen on gingiva, alveolar or buccal mucosa
amalgam tattoo in radiographs
radiopaque fragments
Lead intoxication oral findings
Blue line on the gingiva (Burton line) Gray areas on buccal mucosa and tongue Tongue thrusting
Excessive salivation
Metallic taste
Advanced periodontal disease
Mercury inxoication neuro symptoms?
aka erethism - tremors, memory loss, delirium
Mercury intoxication oral changes?
Metallic taste, enlarged and inflamed salivary glands, blue/black gingiva, destruction of alveolar bone and tooth loss
Acrodynia/Pink/Swift disease is what?
chronic form of mercury intoxication in children
Acrodynia/Pink/Swift disease clinical presentation?
Erythematous and pruritic rash with desquamation of palms and soles
Patches of hair pulled out
Increased lacrimation, neuro symptoms, Htn
Oral - excessive salivation, loss of teeth
Silver intoxication aka?
argyria
Argyria affects what organs/systems?
liver, spleen, GI tract, resp system
Argyria presentation?
grayish discoloration on sun-exposed areas
oral - slate-blue silver line on gingival margins, and blue-black discoloration on oral mucosa
Gold intoxication appearance?
Chrysiasis - slate blue discoloration of sun-exposed skin
Bismuth intoxication
Blue-gray line along gingival margin
Burning
Ulceration
Stomatitis
Black discoloration of filiform papillae
Arsenic poisoning signs
Diffuse macular hyperpigmentation
Hyperkeratosis on palms of hands/soles of feet
Melanotic Neuroectodermal Tumor of Infancy frequent site?
Anterior maxilla
Melanotic Neuroectodermal Tumor of Infancy clinical features
blue/black
rapidly expanding
Destroys bone and displaces teeth
High urine levels of VMA
Smokers Melanosis: patterns for
Cig
Pipe
Reverse?
Cig - anterior facial
Pipe - buccal and commissure
Reverse - hard palate
Peutz-Jeghers Syndrome - clinical features
freckles on hands, mouth, around mouth
Intestinal obstruction, polyps (not premalignant)
GI adenocarcinoma
melanoma how to distinguish from nevus?
A - asymmetry B - border irregularity C - color D - diameter > 6mm E - evolving
Oral melanoma location?
hard palate or max gingiva
Oral melanoma appearance?
brown/black, irregular borders, nodular
