USMLE Step 1 Diagnose This Question 2 Diagnose this. (2) #usmle #usmlestep1 #step1 #diagnosethis A photo posted by @diagnosethis on Feb 2, 2017 at 3:34pm PST AnswerPediculosis capitis (head lice) samuel2018-05-21T23:55:07-07:00February 2nd, 2017|