a. Localized cutaneous amyloidoses
1. Lichen amyloidosis
2. Macular amyloidosis
3. Nodular localized cutaneous amyloidosis
4. Poikiloderma-like cutaneous amyloidosis
5. Anosacral cutaneous amyloidosis
6. Secondary localized cutaneous amyloidosis

b. Systemic amyloidoses
1. AL amyloidosis
2. AA amyloidosis
3. Familial systemic amyloidosis
4. Hemodialysis-related amyloidosis

1. Scleredema
2. Diffuse myxedema
3. Pretibial myxedema
4. Lichen myxedematosus
5. Reticular erythematous mucinosis
6. Follicular mucinosis

1.Tuberous xanthoma
2.Tendon xanthoma
3. Plane xanthoma
4. Xanthelasma palpebrarum
5. Eruptive xanthoma

1. Acrodermatitis enteropathica
2. Hemochromatosis
3. Menkes disease
4. Calcinosis cutis

1. Pellagra
2. Biotin deficiency
3. Vitamin C deficiency

1. Congenital erythropoietic porphyria (CEP)
2. Erythropoietic protoporphyria (EPP)
3. Acute intermittent porphyria (AIP)
4.Variegate porphyria (VP)
5. Porphyria cutanea tarda (PCT)

1. Diabetic gangrene
2. Diabetic scleredema
3. Diabetic xanthoma
4. Necrobiosis lipoidica
5. Diabetic bulla
6. Dupuytren contracture
7. Pretibial pigmented patches
8. Disseminated granuloma annulare
9. Eczema, pruritus
10. Opportunistic infection

1. Fabry’s disease
2. Kanzaki disease
3. Gouty tophus
4. Lipoid proteinosis
5. Phenylketonuria