NON-CANCEROUS GROWTHS

Scope​

  • Solar lentigenes

  • Seborrhoeic keratoses

  • Skin tags

  • Dermatosis papulosa nigrans

  • Cherry angiomas (Campbell de Morgan spots)

  • Sebaceous hyperplasia

  • Keratoacanthoma

  • Syringoma

 
 

Solar lentigenes

 

Lentigenes are flat brown spots found in sun-exposed areas eg. backs of the hands, shoulders and face.  They are sometimes referred to as sun spots, although the term sun spots usually refer to solar keratoses.  Solar lentigenes are benign whereas solar keratoses are pre-cancerous. Treatment is with liquid notrogen or with Intense Pulsed Light (IPL).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

solar lentigenes on the back of the hand

Seborrhoeic keratoses

 

These are yellowish to brown to black growths on the skin, not related to sun exposure or to any particular skin type. These tumours have a stuck-on appearance and are sometimes confused for melanomas. Treatment is with shave excision and electrocautery. Liquid nitrogen may also be used.

 

seborrhoeic keratosis

 

Skin tags

 

Skin tags are soft growths usually found around the neck, armpits, groins and around the eyes.  They are removed with light electrocautery. EMLA cream is used for anaesthesia, applied an hour before hand.

skin tags on right axilla

 

Dermatosis papulosa nigrans (DPNs)

 

These are tiny dark coloured bumps paricularly numerous around the eyes, the cheeks, temples and neck. They are more common on pigmented skin. Treatment is electrocautery under EMLA anaesthetic.

Cherry angiomas (Campbell de Morgan spots)

 

These are collections of blood vessels producing bright red bumps on the skin.  Excellent results are achieved usually with a single shot of NdYAG laser.

Campbell de Morgan Spots before treatment

Campbell de Morgan Spots immediately afer treatment with NdYAG laser. 

Angioma (Campbell de Morgan spot) treated with a single shot of NdYAG laser

1 week after treatment with NdYAG laser shows complete healing of the lesion without scarring

Sebaceous hyperplasia

Enlarged sebaceous glands, found especially on the face. The growths are either cauterised or shave excised to the level of normal skin. Only the part that sticks out of the skin is flattened and part of the gland remains in the skin.

Dermatoscopic image of sebaceous hyperplasia showing prominent lobules of sebaceous glands making up the bump on the skin (arrow). The appearance is described as "popcorn-like".

Microscopic view of the above area showing prominent lobules of sebaceous glands

Keratoacanthoma

A keratoacanthoma is a rapid-growing, smooth dome-shaped growth and a central crust. It is considered non-cancerous and may spontaneously resolve. However, a squamous cell carcinoma may masquerade as a keratoacanthoma. For this reason, it us usually removed and analysed in the laboratory.

A keratoacanthoma arising on the scalp of a 58 year old male.

Syringomas

Small bumps around the eyelids. They represent non-functional sweat glands. Treatment is with electrocautery. A biopsy may be required to confirm the diagnosis.

© 2020 Dr N Raboobee

Please note that consultations and opinions are not offered by email. Appointments for consultations can be made with the secretary - Tel: 031 265 1505. This practice is contracted out of medical aid.

031 265 1505