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This is a descriptive differential diagnosis where the varnishy scale resemble flaky paint (and often a superficial blister leaves a varnishy scale)
| • | vitamin deficiency: glucagonoma syndrome (necrolytic migratory erythema), acrodermatitis enteropathica, pellagra, fatty acid deficiency |
extended ddx:
| • | ichthyosis linearis circumflexa distinct serpiginous arrangement with double edged scale, and usually in a child with Netherton's and the hair of trichorrhexis invaginata |
| • | less likely = superficial pustule ddx – pustular psoriasis/ AGEP, SCPD, candida, bullous impetigo |
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