Derm Flashcards
What are small flat skin lesions
Macule
What are large flat skin lesions
Patch
What are raised small skin lesions called
papule
What are large raised skin lesions called
Nodule
What is fluid filled lesion called that is less than .5cm
Vesicle
What is a pus filled skin lesion called
Pustule
What is a large fluid filled skin lesion called
Bulla
Buzz words for skin SCC
Hyperkeratotic Scaly/crusty Ulcerated Non-healing Rolled edges
What is a rolled edge to a skin lesion
Like a volcano in that top is raised
What is precancerous form of skin SCC
Actinic keratosis
RFx skin SCC and BCC
UV
FHx
Lighter skin
Immunosuppression
Where do skin SCC invade
Locally to dermis
Where do skin SCC and melanoma metastasise to
Lung
Bone
Liver
Brain
Buzzwords for skin BCC
Central fine Telengiectasia Nodule Pearly and rolled edges Central ulcer
What is another word for central ulcer in skin BCC
Rodent ulcer
Where do BBC metastasise
They dont normally
What is invasion of skin BCC
Very slow
Local into dermis
What are the 4 types of skin BCC
Nodular
Morpheic- scar like with yellow waxy plaque
Pigmented- dense colour with specks of colour
Superficial- flat shape
Buzzwords for melanoma skin characteristics
A-E Asymmetry Border- irregular Colour- pigmented Diameter- >6mm Evolution- odd developing shape and size
What can happen to melanomas
Crust over
Itchy
Ulcerate
Bleed
What are 4 types of melanoma
Superficial spreading
Lentigo maligna- flat lesions on face in elderly
Nodular- domed shaped, rapid growth
Acral lentiginous- seen on palms, soles and nail beds of non caucasians
Initial bedside test for skin cancers
Dermatoscope
Blood tests for skin cancer
Calcium
ALP
LFTs
Imaging for skin cancers
CT/MRI/PET to image
Biopsy
What is breslow thickness
Looks at how deep melanomas have invaded- done on biopsy
Indicator for prognosis
What are melanocytic naevi
Benign neoplasms of melanocytes
When do melanocytic naevi develop
Congenital- happens during teenage years
How is a melanocytic naevi described
Symmetrical
Flat
Regular borders
What separates melanomas for melanocytic naevi
Doesnt bleed, itchy, ulcerate or crust over
What is other word for eczema
Dermatitis
What type of conditin is eczema
Inflammatory not autoimmune
Where does atopic eczema occur on body
Flexor surfaces
How is eczema described
Dry skin
Itchy
Erythematous
What is lichenification
Thickened skin
What is long term appearance of eczema
Lichenification
What are RFx for atopic eczema
Atopy FHx or PMHx
Filaggrin gene mutation