PMC4387699_01
Clinical image of eccrine spiradenoma presenting as erythematous nodule on the scalp
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F1
On examination, pink nodule was situated on the occipital area [Figure 1].
Trichoscopy of eccrine spiradenoma showing "serpentine-like" linear reddish structure (yellow arrow) surrounded by whitish areas (black arrows)
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F2
The reddish structure was surrounded by whitish areas [Figure 2].
Histopathology showing tumor lobules (black arrow) and dilated blood vessels (yellow arrows) in the dermis (H and E, x4)
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F3
There was increased collagen in dermis [Figures 3 and 4].
Histopathology showing large, pale tumor cells in the center and small, dark cells at the periphery arranged in cards (H and E, x40)
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F4
There was increased collagen in dermis [Figures 3 and 4].