PMC9547030_01
(A, B) clinical picture showing hyperpigmented papules and plaques over face, neck, upper chest and axilla
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F1
Clinical findings: multiple coalesced hyperpigmented papules and plaques were present over face, neck, upper chest, axillae and groin (Figure 1 (A, B), Figure 2).
clinical picture showing hyperpigmented papules and plaques over groin and onychoscopy showing longitudinal striations and 'V' nicking of the right index finger nail (non-polarized mode, magnification 20X)
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F2
Clinical findings: multiple coalesced hyperpigmented papules and plaques were present over face, neck, upper chest, axillae and groin (Figure 1 (A, B), Figure 2). Onychoscopy with the same dermoscope was done which showed longitudinal striations and 'V' nicking of the right index finger nail distally (Figure 2).
dermoscopic picture showing, (A) irregular linear parallel furrows with cracked riverbed-like appearance (polarized mode, magnification 20X); and (B) yellowish brownish areas with a white halo (blue arrow) and riverbed- like appearance (red arrows) (polarized mode, magnification 20X)
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F3
Findings seen were irregular-linear parallel furrows with cracked riverbed-like appearance (Figure 3 A and red arrows in Figure 3 B) and yellowish brownish areas with a white halo (blue arrows in Figure 3 B).
histopathological picture showing, (A) suprabasal cleft (scanner view, 10X); and (B) corps ronds (high power view, 40X)
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F4
Histopathological examination was done from the punch biopsy taken from the lesion on the back which showed, suprabasal split (Figure 4 A), dyskeratotic keratinocytes- corps ronds in the malphigian layers of the epidermis (Figure 4 B) and grains (Figure 5).
histopathological picture showing grains (high power view, 40X)
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F5
Histopathological examination was done from the punch biopsy taken from the lesion on the back which showed, suprabasal split (Figure 4 A), dyskeratotic keratinocytes- corps ronds in the malphigian layers of the epidermis (Figure 4 B) and grains (Figure 5).