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Lentigo
Classification and external resources
ICD-10	L 81.4
ICD-9	709.09
DiseasesDB	34325
eMedicine	derm/221
MeSH	D007911

Lentigo, plural "lentigines," a noun, is generally considered a brown pigmented spot on the skin. "Lentiginous", an adjective, is used to describe a skin lesion that fits the description of a "lentigo."^[1] Conditions characterized by lentigines include:^[2]^:686-687

[edit] See also

[edit] References

^ Random House Webster's Unabridged Dictionary. Random House, Inc. 2001. Page 1101. ISBN 037572026.
^ James, William D.; Berger, Timothy G.; et al. (2006). Andrews' Diseases of the Skin: clinical Dermatology. Saunders Elsevier. ISBN 0-7216-2921-0.

Clinical and histological nomenclature for skin lesions

Macroscopic

Primary lesions	flat (Macule, Patch) · elevated (Papule, Nodule, Plaque) · fluid (Vesicle, Bulla, Pustule) · Ulcer · Erosion · Telangiectasia Special intial lesions : Burrow (Tunnel) · Comedone · Scutulum · Target lesion · Herald patch · Wheal

Secondary lesions	Scale · Crust · Lichenification · Excoriation · Induration · Atrophy

Microscopic

Hyperkeratosis · Parakeratosis · Hypergranulosis · Acanthosis · Papillomatosis · Dyskeratosis · Acantholysis · Spongiosis · Hydropic swelling · Exocytosis · Vacuolization · Erosion · Ulceration · Lentiginous

Diseases of the skin and subcutaneous tissue (integumentary system) (L, 680-709)

Infections

Bacterial skin disease	Staphylococcus (Staphylococcal scalded skin syndrome, Impetigo, Boil, Carbuncle) · Strep (Impetigo) · Corynebacterium (Erythrasma)

Viral skin disease	Wart · Molluscum contagiosum · Erythema infectiosum · Exanthema subitum · Herpes simplex (Herpetic whitlow, Eczema herpeticum)

General	Cellulitis (Paronychia) · Acute lymphadenitis · Pilonidal cyst · Pimple (Pustule)

Bullous
disorders

acantholysis (Pemphigus, Transient acantholytic dermatosis) · Pemphigoid (Bullous, Cicatricial, Gestational) · Dermatitis herpetiformis

Inflammatory

Dermatitis
and eczema

Atopic dermatitis · Seborrhoeic dermatitis (Dandruff, Cradle cap) · Contact dermatitis (Diaper rash, Urushiol-induced contact dermatitis) · Erythroderma · Lichen simplex chronicus/Prurigo nodularis · Itch (Pruritus ani, Pruritus scroti, Pruritus vulvae) · Nummular dermatitis · Dyshidrosis · Pityriasis alba

Papulosquamous
disorders

Psoriasis (Psoriatic arthritis) · Parapsoriasis (Pityriasis lichenoides et varioliformis acuta, Pityriasis lichenoides chronica, Lymphomatoid papulosis) · other pityriasis (Pityriasis rosea, Pityriasis rubra pilaris) · other lichenoid (Lichen planus, Lichen nitidus)

Urticaria

Dermatographic urticaria · Cold urticaria · Cholinergic urticaria · Solar urticaria

Erythema

Erythema multiforme/ drug eruption	Stevens-Johnson syndrome · Toxic epidermal necrolysis · Erythema nodosum · Acute generalized exanthematous pustulosis

Other erythema	Erythema annulare centrifugum · Erythema marginatum · Keratolytic winter erythema · Necrolytic migratory erythema · Erythema toxicum