A 30-year-old man comes to the physician for a follow-up examination 1 month after sustaining a chemical burn over the dorsum of his right hand and forearm. Physical examination shows hyperextension of the hand at the wrist. The skin over the dorsum of the wrist is tense and there is a thick, epithelialized scar. Range of motion of the right wrist is restricted. This patient's contracture is most likely due to activity of which of the following cells?
AFibroblasts
BMyofibroblasts
CNeutrophils
DMacrophages
EEndothelial cells
During examination of a stab wound, a forensic pathologist notes that one end is sharp and pointed while the other is square or blunt. The wound track shows a consistent width. Which of the following weapon characteristics is most likely?
AIce pick
BDouble-edged knife
CScissors
DSingle-edged knife
A 35-year-old woman with no significant past medical, past surgical, family or social history presents to clinic with a recently identified area of flat, intact, pigmented skin. The patient believes that this is a large freckle, and she states that it becomes darker during the summer when she is outdoors. On physical examination, you measure the lesion to be 6 mm in diameter. Which of the following is the best descriptor of this patient’s skin finding?
AWheal
BPapule
CUlcer
DPlaque
EMacule
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