Slacker’s Guide to Skin Lesions

What are theseType of lesion: Type of lesion:

Type of lesion: Type of lesion:

What are these

<- Café au lait

Mongolian spot ->

<- Lentigo

Ephelid ->

Type of lesion: Macular/patch Type of lesion: Macular/patch

Type of lesion: Macule Type of lesion: Macule

Differentials

<- Café au lait

Mongolian spot ->

Present at birth or early childhoodDoes not fade with ageLight brown in huePresent anywhere

Present at birthFades with ageBluish in hueLimited to sacral lumbar area

Type of lesion: Macular/patch Type of lesion: Macular/patch

Differentials

<- Lentigo

Ephelid ->

Related to sun exposureTypically seen in older individuals

Seen in young individualsLightens and darkens with sun exposure

Type of lesion: Macule Type of lesion: Macule

What are these

<- Café au lait

Ephelid ->

LargeDoes not fade with ageStable coloration. Surroundingskin may change color

SmallFades with age?Lightens and darkens with season

Type of lesion: Macular/patch

Type of lesion: Macule

What are theseType of lesion: Type of lesion:

Type of lesion:Type of lesion:

What are theseType of lesion: Slight papule

<- Junctional Nevus

Compound Nevus->

<- Intradermal Nevi

Sebhorreic Keratosis ->

Type of lesion: Macule

Type of lesion: papule Type of lesion: papule

Differentials

<- Intradermal Nevi

Sebhorreic Keratosis ->

Type of lesion: papule Type of lesion: papule

??Not velvetyMelanocyte nests in dermis

Keratotic psuedocystsVelvety texture

What are theseType of lesion:Type of lesion:

Type of lesion: Type of lesion:

What are theseType of lesion: Macule

<- Junctional Nevus

Dysplastic Nevus->

<- Halo Nevus

Dermatofibroma->

Type of lesion: Macule

Type of lesion: Macule Type of lesion: macule or papule

Differentials

<- Halo Nevus

Dermatofibroma->

Type of lesion: Macule Type of lesion: macule or papule

Dimples when pinchedUsually on legsCentral white patch

Outer white ring

DifferentialsType of lesion: Macule

<- Junctional Nevus

Dysplastic Nevus->

Type of lesion: Macule

Irregular border and colorNests of melanocytes stream horizontally

Usually regular color and edgesMelanocyte nests at dermal epidermal junction

What are theseType of lesion:Type of lesion:

Type of lesion: Type of lesion:

What are theseType of lesion: Papule

<- Kerattoacantthoma

Angioma: Pyogenic Granluoma ->

<- Epidermoid Cyst

Pilar Cyst->

Type of lesion: Papule

Type of lesion: Papule Type of lesion: Papule

DifferentialsType of lesion: Papule

<- Kerattoacantthoma

Angioma: Pyogenic Granluoma ->

Type of lesion: Papule

Keratin center that looks like a dormant volcano

Red vascular center that looksLike an active volcano.

Differentials

<- Epidermoid Cyst

Pilar Cyst->

Type of lesion: Papule Type of lesion: Papule

Present on “hairless” areas Usually involves hairy areas

What are theseType of lesion:Type of lesion:

Type of lesion: Type of lesion:

What are theseType of lesion: Papule

<- Sebaceous Hyperplasia

Syringoma ->

<- Adenoma Sebaceum

Verruca Plana ->

Type of lesion: Papule

Type of lesion: Papule Type of lesion: Papule

DifferentialsType of lesion: Papule

<- Sebaceous Hyperplasia

Syringoma ->

Type of lesion: Papule

Forehead of menSebaceous glands

Below eye of womenEccrine glands

Differentials

<- Adenoma Sebaceum

Verruca Plana ->

Type of lesion: Papule Type of lesion: Papule

Flat warts.Central facial papules

What are theseType of lesion: Type of lesion:

Type of lesion: Type of lesion:

What are theseType of lesion: Papule?

<- Blue Nevus

Venous Lake ->

<- Fibroepithelial polyps

Stucco Keratosis->

Type of lesion: Papule

Type of lesion: Papule Type of lesion: Papule

What are theseType of lesion: Papule?

<- Blue Nevus

Venous Lake ->

Type of lesion: Papule

Mole with deeper melaninResulting in a blue color

Collection of venous bloodBlanches when pressed

Differentials

<- Fibroepithelial polyps

Stucco Keratosis->

Type of lesion: Papule Type of lesion: Papule

Small Seborrheic KeratosisSmall mole like structures but Less well attached?

What are theseType of lesion: Type of lesion:

Type of lesion: Type of lesion:

What are theseType of lesion: macule? Type of lesion: Macule/patch

Type of lesion: Type of lesion:

<-Angioma:Telangiectasia

Angioma :Spider->

What are theseType of lesion:Type of lesion:

Type of lesion: Type of lesion:

What are theseType of lesion: Papule?

<- Pustular Psoriasis

Erythema Multiforme ->

<- Gutate psoriasis

Herpes Zoster ->

Type of lesion: Papule

Type of lesion: Papule Type of lesion: Papule

Differentials

<- Pustular Psoriasis

Erythema Multiforme ->

Targetoid lesionsDiffuse

Differentials

<- Gutate psoriasis

Herpes Zoster ->

ItchyPainfulFollows dematome

What are these

What are these

<- Varicella (Chicken Pox)

Lichen Planus ->

<- Urticaria

Mobiliform->

Differentials

<- Varicella (Chicken Pox)

Lichen Planus ->

Dew drop on rose patternItchyWidespreadCaused by Varicella

Pruritic, purple, polygonal,polymorphous papulesWrists, oral whitishreticulation

Differentials

<- Urticaria

Mobiliform->

AngioedemaTransientRapid changesCan be localized or diffuse

Resembles measlesErythematous papules coalsescing intoplaques

What are these

What are these

<- Bullous Pemphigoid

Pemphigus Vulgaris ->

<- Psoriasis

Seborrheic Dermatitis->

Differentials

<- Bullous Pemphigoid

Pemphigus Vulgaris ->

Tense blisters Flaccid blisters

Differentials

<- Psoriasis

Seborrheic Dermatitis->

Erythematous plaques with silveryscaleEspecially on elbows and kneesPitting of nails common

In sebaceous areas

What are these

<- Dyshidrotic Eczema

Molluscum Contagiosum ->

<- Impetigo

Atopic Dermatitis->

Differentials

<- Dyshidrotic Eczema

Molluscum Contagiosum ->

Itchy Small blisters on hands and feetNon contagious

Small fleshy pearlescent papulesCaused by pox virusContagious – std in adults

Differentials

<- Impetigo

Atopic Dermatitis->

Honey coloredStaph or strep infection

Aggravated by allergens in environment