NBME 20 Answers : Block 4 : #14 = A 60-year-old man has a round, semitransparent ...

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NBME Answers & Explanations

NBME 20 Answers

nbme20/Block 4/Question#14

A 60-year-old man has a round, semitransparent ...

Basal cell carcinoma

+3 upvote downvote
submitted by usmleuser007(155),

All other types are either pigmented or have scales. -- process of elimination

+3 upvote downvote
submitted by sympathetikey(436),

I believe the biopsy description of "small basophillic cells forming tumor islands" is describing the peripheral palisading that is classically seen in Basal cell carcinoma.

+1 upvote downvote
submitted by almondbreeze(3),

'round, semitransparent nodules'

FA2019 p.473 says BCCs are waxy, pink, pearly nodules

-2 upvote downvote
submitted by step1soon(17),

Anything upper lip + above → basal cell carcinoma

Anything lower lip → Squamous cell carcinoma

FA 2019 -pg 473

adong it's saying upper vs lower lip. this pt has it on the nose +