Step I NBME 17 question

[mj413121]

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Could anyone explain the picture in this question for me? Thank you

 

[Rahas]

What you can see is

1.Hyperkeratosis (thickened stratum corneum)
2.Parakeratosis (you can see the nuclei very clearly in the stratum corneum)
3.Dysplasia (notice keratinocytes hyperchromatic and large nuclei go up almost all the way to the top. This isnt so in normal skin)

all this fits actinic keratosis

 

[mj413121]

What you can see is

1.Hyperkeratosis (thickened stratum corneum)
2.Parakeratosis (you can see the nuclei very clearly in the stratum corneum)
3.Dysplasia (notice keratinocytes hyperchromatic and large nuclei go up almost all the way to the top. This isnt so in normal skin)

all this fits actinic keratosis

Thank you!