Dermatology Flashcards
(19 cards)
What is the most common type of skin cancer?
BCC
What does a BCC look like?
Pearly rolled edge, ulcerated centre, telengectasia
How does an SCC appear?
Keratotic- very scaly and crusty
Which condition predisposes someone to SCC?
Acintinic keratosis
Staging melanoma?
Breslow thickness, more then 0.7mm is worrying.
What symptoms do you ask when you see a mole?
Itching, bleeding, change in colour, texture, size. Then sun exposure, cumulative or burning episodes.
Remember SCC is cumulative and melanomas are due to burning. Also check nails for sub-ungal melanomas.
Causes of a malar rash?
Mitral valve disease, SLE, acne rosasea.
What is keratoderma blennorhagica?
Skin lesions which resembles psoriasis found on the soles of the feet and the palms, as well as the penis. It is commonly seen in reactive arthritis.
What are the associations with saddle nose?
Nasal trauma, congenital syphillus, wegeners granulomatosis, cocaine use.
If you see yellowy flakes on someone with shingles, what should you do?
Co-prescribe some flucloxacillin.
Causes of gynaecomastia?
Cannabis use, finasteride, testicular cancer. Klinefelters
What is lupus pernio?
Granulomatous inflammation on the nose associated with sarcoid
Blood tests in sarcoid
ESR, FBC, serum ACE, Calcium
Also do fundoscopy as can cause retinal vasculitis
Kidney function too
What is ramsey-hunt syndrome?
When shingles affects the facial nerve causing facial paralysis. (the only way to distinguish from bells is to look at the ear for vesicles).
Causes of gum hyperplasia?
Scurvy, sodium valproate (most anti-convulsants), poor oral hygiene.
In which condition do you see livedo reticularus?
Mottled appearance of skin, has many causes and is usually due to inflammed blood vessels/ swelling of the venules due to small blood clots obstructing the capillaries. Seen in Lupus & many other conditions.
Investigations for acromegaly?
Gold standard is a glucose tolerance test. You can also measure GH level.
GH is normally inhibited by glucose. If the glucose load fails to suppress the GH level below 1.0 mcg/L this confirms the diagnosis of acromegaly.
What are patients with acromegaly at an increased risk of?
Colon and thyroid cancer. All patients should be offered yearly scoping from the age of 40.
Signs of hypothyroid on the face?
Coarse thin hair, thin lateral eyebrows, periorbital odema & puffy dull face with dry skin. (PICTURE QUIZ)
