DERM Flashcards
Red Macules and edematous papules with a clearing center
Erythema Multiforme
May be recurrent but usually resolves over 3-6 weeks
Waxy/scaly rash usually confined to scalp, eyebrows, eyelids
Seborrheic Dermatitis
Dermatologic Manifestations of Diabetes Mellitus
Acanthosis Nigricans
Necrobiosis Lopodica Diabeticorum: Pretibial rash that enlarges and develops ulcerated centers
Granuloma Annulare - looks a bit like ringworm but doesn’t respond to Antifungals. Also suggestive of hyperlipidemia
Thickening of the skin with swelling of the fingers & hands, forearms and face. Lower extremities usually spared
Scleroderma
Literally calcification of the skin
Check Vitamin K2 levels!
Lipoma vs Xanthoma
Lipomas are usually UNILATERAL and flesh colored
Xanthomas are often BILATERAL and are YELLOW
Pre-Tibial Myxedema
Erythema + Edema of the distal Tibial area just above the ankles.
Suggests Grave’s dz. So much so it is also called “Graves Dermopathy”
Christmas tree rash with Herald Patch
What is it?
What’s the Rx?
Pityriasis Rosea
Herald Patch classically appears on abdomen then there is a generalized trunk spread in 2 days-2 weeks
May be preceded by URI
Lesions are discrete, circular/oval pink/red
There should be scaling on the perimeter
There should be central clearing on at least two of the larger lesions.
No palmar/plantar lesions or vescicles
Self Resolves in 5-6 weeks but rule out Lyme, Ring Worm and Psoriasis. Antihistamines may help itch. Sun exposure hastens healing.
Test for SLE: Systemic Lupus Erythmatosis
ANA Anti-Nuclear Antibodies
Lupus signs
Malar Rash, esp in sun Arthralgias + Myalgias Intermittant Atrthritis Kidney Damage Poor recovery from infection
Margenatum Vs Multiforme
Marginatum, though it suggests a “margin” doesn’t have central clearing
Multiforme is a target lesion (like Lyme, erythema migraines)
necrobiosis lipoidica diabeticorum
discrete red pre-tibial plaques, painful, centers eventually ulcerate
Classic in uncontrolled diabetes
Irregular Borders and Non-Uniform Color on a lesion, think
Melanoma
Lentigo AKA
Age Spots
Sun Damage caused benign flat brown spots on face, hands arms head.
It has a clearly defined edge and is essentially a melanocyte congregation confined to the epithelium. May grow over time
May invade the dermis, in which case it will start to grow and the color will become notably non-uniform. This is a Lentigo enroute to becoming LENTIGO MALIGNA which has the potential to become LENTIGO MALIGNA MELANOMA.
GET ANY CHANGING AGE SPOTS CHECKED BY DERM. Send them a photo
macular rash on the wrists, ankles, extremities, and trunk. After 5 days the rash appears on the palms and soles.
Rocky Mt Spotted Fever
Atopic Dermatitis, cornerstones of treatment:
Avoiding Cutaneous Irritants
Warm not Hot showers/baths
Low-Med potency corticos just after bath
