Lecture 10: Benign Lesions and Pre-malignant skin lesions Flashcards
Benign Lesions of the Skin Includes:
Seborrhoeic Keratoses Viral warts # Cysts Dermatofibromas Lipomas Angiomas Pyogenic Granulomas
Patient presents with an encapsulated lesion on the skin, it contains fluid and is firm but mobile on the skin. What is it?
A cyst. Most likely an epidermoid cyst
How would you treat a cyst in the skin?
Excise
If they’re infected you’ll need:
- Antibiotics
- Intralesional steroids
- Incision & Drainage
Patient presents with rough hyperkeratotic surfaces containing black spots of blood vessels. Mainly around the fingers. What is it?
Viral Wart. Brought on by the HPV virus
How do we treat viral warts?
Chemical paints and cryotherapy to stimulate immune system
Currete severe or painful ones.
Patient comes in with multiple “warty” growths with a stuck on appearance. They have nearby cherry angiomas. ?
Seborrhoeic Keratoses
They’re pretty normal
How would you treat seborrhoeic keratoses?
Mostly leave them, they may even fall off themselves.
If they’re troublesome you can currette them or use cryotherapy
What do you think if seborrhoeic keratoses appear suddenly? (multiple warty “stuck on” growths)?
Leser-Trelat Syndrome
Its a paraneoplasic syndrome resulting from GI adenocarcinomas
Most people have firm fibrous nodules that are pale pink/brown and may be itchy/tender. What are htey?
Proliferations of fibroblasts at the site of minor trauma e.g. insect bites known as dermatofibromas
they dimple when you pinch them
How would you approach a dermatofibroma
Leave it unless its causing itching or tenderness, or if its potentially developing malignancy.
then you must excise it
Patient presents with a smooth rubbery subcutaneous mass thats quite mobile. its completely asymptomatic. What is it?
Probably a lipoma (benign adipose tumour)
If its tender that might indicate an angiolipoma
A patient comes in with a number of red nodules with spider naevi, upon dermatoscopy you see venous lakes in the nodule. what is it?
An angioma.
Due to proliferation of blood vessels
Often found during pregnancy or liver disease
How do treat an angioma
Excision or laser ablation
Patient with a red raw growth on hand that bleeds?
Pyogenic Granuloma
You want to currette it and then thermally cauterize it
