NBME 16 Inability to produce melanin (NBME Answers)

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NBME 16 Answers

nbme16/Block 1/Question#25 (reveal difficulty score)
A 1-year-old boy is brought to the physician ...
Inability to produce melanin 🔍 / 📺 / 🌳 / 📖
tags: biochem derm repeat

+2 upvote downvote
submitted by ∗okokok1(38)

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:Aimslbni lNomra coeynmtael ubmern ihtw EERESDDAC mnaelin oudonprtci eud to ddreecsea tasoinsery itatyvic or cvdiefete nesyirot ttno.rpsra srik of ksin ac.nrec

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okokok1 the choice "decreased number of epidermal melanocytes" is vitiligo. +7

fatboyslim @okokok1 isn't vitiligo immune destruction of melanocytes (choice C)? Maybe it's both. Since if you destroy the melanocytes you will have fewer numbers of them in the epidermis? +

In the same vein, a darker-skinned person would have an increased number of melanosomes. BUT the SAME number of melanocytes and melanophages as a lighter-skinned person.

+/- namesthegame22(11)

+0 upvote downvote
submitted by ∗tamarafainblout(1)

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why tacn it be ?A net'rA etsclmneoya vdderie ormf erlnua ctres l?scle

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-2 upvote downvote
submitted by ∗the_enigma28(69)

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ihCld sah nsliia.mb cvDfteiee nemilna yhnsetsis edu to ieedncycif of ynzeem sytonrie ayo.sxdhylre FA 2002, egap 746

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topgunber tyrosinase. tyrosine hydroxylase would make L-dopa +2

sabrooza It is Tyrosinase deficiency not (Tyrosinase hydroxylase ) +1

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