Benign skin lesions Done by Ahmad AlZubi Skin

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 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.