Benign skin lesions Done by : Ahmad Al-Zu’bi - PowerPoint Presentation

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Benign skin lesions

Done by : Ahmad Al-Zu’bi

Skin tags(acrochordon)

common benign outgrowths of skin affect mainly the middle-aged and elderly

.

Skin tags are soft skin-

coloured

or pigmented pedunculated papules commonly found around the neck and within the major

flexures.

The Cause is

unknown but the trait is sometimes familial. Skin tags are most common in obese women, and rarely are associated with tuberous sclerosis

,acanthosis

nigricans

or acromegaly and

diabetes.

Treatment

: cryotherapy, curettage,

snipped off with fine scissors

Skin tag

Seborrhoeic keratosis (basal cell papilloma, seborrhoeic wart)

This is a common benign epidermal

tumour

, unrelated to sebaceous glands, found in older individuals. The term ‘senile wart’ should be avoided as it offends many patients

.

Cause :

Usually unexplained but: Multiple lesions may be inherited (autosomal dominant); Occasionally follow an inflammatory dermatosis; or Very rarely, the sudden eruption of hundreds of itchy lesions is associated with an internal neoplasm

(

Leser

–

Trelat

sign)

, usually adenocarcinoma of the

gastrointestinal

tract

.

Seborrhoeic

keratoses

usually arise after the age of 50

years.

They are often multiple

but

may be single. Lesions are most common on the face and trunk. The sexes are equally affected.

Physical signs:– Single or multiple

-

A distinctive ‘stuck-on’ appearance

-

Surface may be

smooth

or verrucous-

Colour

varies from yellow–white to dark

brown–black

-

Surface may have greasy scaling and scattered keratin

_ Biopsy is needed only in rare dubious

cases.

Dermatosis

papulosa

nigra

is name

for a common variant of

seborrhoeic

keratoses

affecting black adults. Multiple pigmented

papules ,The

condition may run in families, being inherited as an autosomal dominant trait

.

Treatment : cryotherapy,

curettage.

Cryotherapy should be avoided for dermatosis

papulosa

nigra

, as hypo or hyperpigmentation may result.

Milia

Milia

are small

subepidermal

keratin cysts

.They are common on the face in all age groups.May be

multiple .

May

occur after trauma or blister

.

The

contents of

milia

can be picked out with a sterile

needle.