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Pigmentation disorder

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Pigmentation disorder

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Pigmentation disorder
Specialty	Dermatology

Pigmentation disorders are disturbances of human skin color. There may be a loss or reduction, which may be related to loss of melanocytes or the inability of melanocytes to produce melanin or transport melanosomes correctly.

Most pigmentation disorders involve the underproduction or overproduction of melanin.

External links

Pigmentation disorders/Dyschromia

Hypo-/
leucism

Loss of
melanocytes

Vitiligo	Quadrichrome vitiligo Vitiligo ponctué
Syndromic	Alezzandrini syndrome Vogt–Koyanagi–Harada syndrome
Melanocyte development	Piebaldism Waardenburg syndrome Tietz syndrome

Loss of melanin/
amelanism

Albinism	Oculocutaneous albinism Ocular albinism
Melanosome transfer	Hermansky–Pudlak syndrome Chédiak–Higashi syndrome Griscelli syndrome Elejalde syndrome Griscelli syndrome type 2 Griscelli syndrome type 3
Other	Cross syndrome ABCD syndrome Albinism–deafness syndrome Idiopathic guttate hypomelanosis Phylloid hypomelanosis Progressive macular hypomelanosis

Leukoderma w/o
hypomelanosis

Ungrouped

Hyper-

Melanin/
Melanosis/
Melanism

Reticulated	Dermatopathia pigmentosa reticularis Pigmentatio reticularis faciei et colli Reticulate acropigmentation of Kitamura Reticular pigmented anomaly of the flexures Naegeli–Franceschetti–Jadassohn syndrome Dyskeratosis congenita X-linked reticulate pigmentary disorder Galli–Galli disease Revesz syndrome
Diffuse/ circumscribed	Lentigo/Lentiginosis: Lentigo simplex Liver spot Centrofacial lentiginosis Generalized lentiginosis Inherited patterned lentiginosis in black persons Ink spot lentigo Lentigo maligna Mucosal lentigines Partial unilateral lentiginosis PUVA lentigines Melasma Erythema dyschromicum perstans Lichen planus pigmentosus Café au lait spot Poikiloderma (Poikiloderma of Civatte Poikiloderma vasculare atrophicans) Riehl melanosis
Linear	Incontinentia pigmenti Scratch dermatitis Shiitake mushroom dermatitis
Other/ ungrouped	Acanthosis nigricans Freckle Familial progressive hyperpigmentation Pallister–Killian syndrome Periorbital hyperpigmentation Photoleukomelanodermatitis of Kobori Postinflammatory hyperpigmentation Transient neonatal pustular melanosis

Other
pigments

Iron	Hemochromatosis Iron metallic discoloration Pigmented purpuric dermatosis Schamberg disease Majocchi's disease Gougerot–Blum syndrome Doucas and Kapetanakis pigmented purpura/Eczematid-like purpura of Doucas and Kapetanakis Lichen aureus Angioma serpiginosum Hemosiderin hyperpigmentation
Other metals	Argyria Chrysiasis Arsenic poisoning Lead poisoning Titanium metallic discoloration
Other	Carotenosis Tar melanosis

Dyschromia

See also

Congenital malformations and deformations of integument / skin disease

Genodermatosis

Congenital ichthyosis/
erythrokeratodermia

AD	Ichthyosis vulgaris
AR	Congenital ichthyosiform erythroderma: Epidermolytic hyperkeratosis Lamellar ichthyosis Harlequin-type ichthyosis Netherton syndrome CHIME syndrome Sjögren–Larsson syndrome
XR	X-linked ichthyosis
Ungrouped	Ichthyosis bullosa of Siemens Ichthyosis follicularis Ichthyosis prematurity syndrome Ichthyosis–sclerosing cholangitis syndrome Nonbullous congenital ichthyosiform erythroderma Ichthyosis linearis circumflexa Ichthyosis hystrix

EB
and related

EBS
- EBS-K
- EBS-WC
- EBS-DM
- EBS-OG
- EBS-MD
- EBS-MP

DEB
- DDEB
- RDEB

Ectodermal dysplasia

Elastic/Connective

Hyperkeratosis/
keratinopathy

PPK

diffuse: Diffuse epidermolytic palmoplantar keratoderma
Diffuse nonepidermolytic palmoplantar keratoderma
Palmoplantar keratoderma of Sybert
Meleda disease

syndromic

ungrouped: Palmoplantar keratoderma and spastic paraplegia
desmoplakin
- Carvajal syndrome
connexin
- Erythrokeratodermia variabilis
- HID/KID

Other

Developmental
anomalies

Midline	Dermoid cyst Encephalocele Nasal glioma PHACE association Sinus pericranii
Nevus	Capillary hemangioma Port-wine stain Nevus flammeus nuchae
Other/ungrouped	Aplasia cutis congenita Amniotic band syndrome Branchial cyst Cavernous venous malformation Accessory nail of the fifth toe Bronchogenic cyst Congenital cartilaginous rest of the neck Congenital hypertrophy of the lateral fold of the hallux Congenital lip pit Congenital malformations of the dermatoglyphs Congenital preauricular fistula Congenital smooth muscle hamartoma Cystic lymphatic malformation Median raphe cyst Melanotic neuroectodermal tumor of infancy Mongolian spot Nasolacrimal duct cyst Omphalomesenteric duct cyst Poland anomaly Rapidly involuting congenital hemangioma Rosenthal–Kloepfer syndrome Skin dimple Superficial lymphatic malformation Thyroglossal duct cyst Verrucous vascular malformation Birthmark