Dermatopathology, Set 1

For each of the following patients, select the most likely pathologic finding:

1. A 22-year-old man has several dome-shaped brown lesions on his arms and chest ranging from 0.2 to 0.5 cm in size which have not changed appreciably in appearance for years:

2. A 29-year-old woman has several large pale brown macules more than 2 cm in size over her torso and extremities, as well as numerous firm subcutaneous nodules ranging from 0.3 to 1 cm in size. These lesions have been present for years:

3. Over the past week, a 92-year-old woman has the eruption of crops of painful vesicles that are 0.2 to 0.6 cm in size located along a 2 x 10 cm area of right lateral chest:

4. A 41-year-old man has a 0.7 cm long skin-covered nodule projecting from a narrow base at his waistline. It has been present for a couple of years, but it becomes irritated when he wears a belt:

5. A 46-year-old woman has a "bump" on her left arm that has been slowly enlarging for the past year. When palpated, it is a movable, well-circumscribed subcutaneous mass 1.5 cm in diameter:

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