MELANOTIC MACULE (FOCAL MELANOSIS) Flashcards
1
Q
CONCEPT
A
MOST COMMON MELANOCIT LESIONS
2
Q
CHARACTERISTICS
A
BROWNISH FLAT ORAL DISCOLORATION = FOCAL INCREASED MELANIN DEPOSIT
3
Q
ASPECT
A
SOLITARY, WELL-DERMACATED, UNIFORMLY TAN TO DARK-BROWN, ASYMPTOMATIC, ROUND/OVAL MACULE, 7 mm DIAMETER OR LESS
4
Q
MOST COMMON SITE
A
VERMILION ZONE (LOWER LIP)
5
Q
CAUSE
A
INDEPENDENT SUN EXPOSURE
6
Q
HISTOLOGICALLY
A
INCREASED MELANIN BASAL/PARABASAL LAYERS OF AN OTHERWISE NORMAL STRATIFIEL SQUAMOUS EPITHELIUM
7
Q
MALIGNANCY
A
NO
8
Q
TREATMENT
A
NO, ONLY ESTHETIC
9
Q
BIOPSY
A
RECENT ONSET, LARGE SIZE, IRREGULAR PIGMENTATION, UNKNOWN DURATION, RECENT ENLARGEMENT
