Screening young adults Flashcards
At what age does epidemiology not help at all?
50
SCC by age group
21-60 - 8%, 61+ 92%
BCC by age group
0-20 - 0.2%, 21-60 - 36.8%, 61+ - 63%
Melanoma by age group
0-20 - 1%, 21-80 - 57%, 61+ 42%
Melanoma, decades at highest risk
40-50, 50-60, 60-70
No. of nevi increase to age …. the decline
40
4 main types of nevu
globular, reticular, starburst, homegeneous
globular nevi contain nests of melanocytes in the –
upper dermis below dermo-epidermal junction
reticular nevus contain melanocytes in the …
continuous pigment along dermo-epidermal junction
special categories of nevi
hemorrhagic nevus : hemosiderotic targetoid nevus
inflamed nevus
Sclerosing nevus - middle back - white or blue color in middle that looks like regression
Combined nevi
Distinguish combined (blue nevus) from melanoma
Blue area with another areas consisting of network and globules - likely benign
Melanoma structureless blue is usually combined with white streaks and usually one other melanoma criterion
Melanoma specific criteria
- Atypical network
- Regression
- Irregular dots/ globules
- Irregular blotch
- Irregular streaks/ pseudopods
- Shiny white streaks
- Blue/ white veil
- Atypical vessels
Additional criterion for early melanoma in situ
Irregular Hyperpigmented areas
Fast-growing nodular nevi are most common in patients…
Without nevi.
High nevus count confers —— Prognosis in melanoma patients
favorable
