NBME 22 Answers : Block 2 : #37 = A 63-year-old man has had progressive stiffness ...

nbme22/Block 2/Question#37

A 63-year-old man has had progressive stiffness ...

Area labeled ‘D’

+9 upvote downvote
submitted by mcl(167),

This image is useful. Note that the stain used makes myelin appear dark.

Vignette is typical for Parkinson's disease. Area D is the substantia nigra.

oznefu Oh nice! Thanks! +

+2 upvote downvote
submitted by oznefu(7),

does anyone know what A, B, C and E are pointing to? I figured D is substantia nigra since it's the correct answer.

upstairs_bumblebee A/B - i think both of these are just thalamic nuclei; C -> STN; D -> substantia nigra; E -> hippocampus +2