Pre-cancerous skin lesions Flashcards
State two types of pre-malignant skin tumours
Naevus (mole) Actinic keratosis (solar keratosis)
Define Congenital melanocytic naevus
Pigmented skin lesions present at birth Tend to be larger than acquired naevi Often become protuberant and hairy May feature satellite lesions
Outline the main complications of congenital melanocytic naevus
Melanoma: Typically in giant melanocytic naevi. Requires long-term follow up with dermatologist. Neurocutaneous melanosis (melanin in CNS): Causes developmental delays, fits,and melanoma. Recommended to have urgent MRI if symptomatic. Likelihood of complications is correlated to the size of the Congenital melanocytic naevus.
When does congenital melanocytic naevus become giant congential melanocytic naevus?
>20 cm diameter in adulthood
Name 5 benign skin tumours
Keloid Papilloma Cysts Warts Naevi: Strawberry naevi self-resolve after a few years.
Define Actinic (solar) keratosis
Common pre-cancerous sun-induced scaly lesion. Premalignant: 14% progress to SCC in 5 years. Uncommon under 45 years. Incidence increases with age. AK is typically asymptomatic. Growth, pain, bleeding, and ulceration are suggestive of transformation to SCC.
What is a keloid?
Excessive scarring
What treatment options for keloid?
Early: steroid injection, cryotherapy Excision is not used as larger keloids form after
What are the risk factors for keloid?
PMH of keloid FH of keloid Dark skin
What is the prognosis of Actinic keratosis?
Premalignant: 14% progress to SCC in 5 years.
Which age group is most commonly affected by Actinic keratosis?
Uncommon under 45 years. Incidence increases with age.
Name 5 benign skin tumours
Keloid Papilloma Cysts Warts Naevi: Strawberry naevi self-resolve after a few years.
Define Actinic (solar) keratosis
Common pre-cancerous sun-induced scaly lesion. Premalignant: 14% progress to SCC in 5 years. Uncommon under 45 years. Incidence increases with age. AK is typically asymptomatic. Growth, pain, bleeding, and ulceration are suggestive of transformation to SCC.
What is a keloid?
Excessive scarring
