Among these are Fungal infections (eg, tinea manuum, tinea pedis, cutaneous yeast infections) Viral infections (eg, herpetic whitlow, warts) Bacterial infections (eg, impetigo, atypical mycobacterial infections) Parasitic infections (eg, scabies, cutaneous larva migrans) Hereditary palmoplantar keratoderma Hereditary epidermolysis bullosa (many different subtypes) Cutaneous T-cell lymphoma Lichen planus Pityriasis rubra pilaris Keratolysis exfoliativa (lamellar dyshidrosis) Hand-foot syndrome Keratolysis exfoliativa (also known as lamellar dyshidrosis or dyshidrosis lamellosa sicca) is not an inflammation of the skin (and thus not a dermatitis).