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Derm: High Yield
Terms in this set (82)
What are the 3 classical links with eczema?
allergic rhinitis, asthma, and atopic dermatitis
What conditions is classified by pruritic coin shaped lesions?
What is treatment for atopic dermatitis?
topical steroids and antihistamines for itching
What are the well-demarcated rough plaques called that are created secondary to repetitive rubbing or scratching?
lichen simplex chronicus or neurodermatitis
What are the 5 P's associated with lichen planus?
purple, pruritic, planar, polygonal, papules with fine scales
Where is lichen planus typically found?
skin, mouth, scalp, genitals, or nails
Patient walks in with a large solitary macule that slowly spreads in a Christmas tree pattern. Most likely diagnosis? Treatment?
pityriasis rosea, no treatment
What does pityriasis rosea mimic?
What is a condition that is caused by keratin hyperplasia (proliferating cells in the stratum basale and stratum spinosum)?
Where is psoriasis MC found?
extensor surfaces, scalp
What is a common symptom found in psoriatic patients?
Psoriatic arthritic patients' fingers are often described as what?
How do we treat psoriasis?
What is pityriasis versicolor?
overgrowth of Malassezia; common in summer
How do we diagnosis pityriasis versicolor?
KOH prep; see spaghetti and meatballs
What is treatment of pityriasis versicolor?
What is the etiology of seborrheic dermatitis?
high sebaceous gland over secretion
What is the most common skin eruption?
exanthematous mobiliform rash due to recent abx initiation
Urticarial is also known as what?
Target lesions describe this 3rd MC type of drug reactions?
What type of hypersensitivity reaction are urticaria?
Erythema Multiforme is what type of hypersensitivity reaction?
What are blanchable, edematous pink papules, wheals, or plaques?
What is the most common cause of erythema multiforme?
herpes simplex virus
EM minor and EM major - what's the differnece?
EM major has mucosal involvement
What is a reaction that begins with fever and URI sx then leads to widespread blisters that begin on trunk/face and progress to epidermal detachment?
Steven Johnson Syndrome
What are small, non inflamed bumps from clogged pore?
Whiteheads are ______ comedones; blackheads are ______ comedones.
What is an acne like rash with erythema, facial flushing, telangiectasia, skin coarsening, papulopustules, and stinging?
What is treatment for rosacea?
This condition is MC seen in fair skinned elderly with prolonged sun exposure?
People who have actinic keratosis are often at risk for what?
squamous cell carcinoma
What condition presents clinically as dry, rough, scaly "sandpaper" skin lesion?
What is an autoimmune destruction of melanocytes leading to skin depigmentation?
What is the MC benign skin tumor that is often seen in fair skinned elderly with prolonged skin exposure?
What condition is clinically described as a small papule/plaque with velvety warty lesion and greasy stuck on appearance?
What is treatment for seborrheic keratosis?
no treatment needed unless cosmetic
What are painful, erythematous inflammatory nodules seen on anterior shins that are often bilateral?
What are causes of erythema nodusum?
estrogen exposure, sarcoidosis, infections, inflammatory disorders
What is the MC skin cancer in US?
basal cell carcinoma
How is basal cell carcinoma most commonly described clinically?
small, raised, translucent/pearly/waxy papules with central ulceration and raised, rolled border.
T or F: basal cell carcinomas bleed easily.
Where is MC location of basal cell carcinoma?
What skin cancer is often preceded by actinic keratosis or HPV infection?
squamous cell carcinoma
What is squamous cell carcinoma in situ?
What is the clinical manifestation of squamous cell?
red, elevated nodule with white scaly or crusted bloody margins
T or F: melanoma has low mets potential.
What is the most important prognosis factor for mets for melanoma?
Describe ABCDE for melanoma?
assymmetry; borders: irregular; color: variation (dark blue, black); diameter: >6mm; evolution
What is a condition MC in HIV/immunosuppressed patients that is caused by HHV-8?
What is a highly contagious superficial vesiculopustula skin infection often found on face?
MC cause of impetigo?
Describe nonbullous impetigo?
vesicles, putules --> honey colored crust
What is treatment for impetigo?
Mupirocin (bactroban); systemic abx (Keflex, Dicloxacillin)
What is a superfiical hair follicle infection?
What is a deeper infection of the hair follicle that is tender?
How do we treat furuncle?
What is MC cause of paronychia?
What is a benign viral infection that is highly contagious and often seen in HIV patients?
What is a single or multiple dome shaped, flesh colored to pearly-white waxy papule with central umbilication?
How do we treat lice?
Permethrin; extensively clean bedding/clothing
What are two clinical manifestations of scabies?
intense pruritis, linear burrows
Red itchy pruritic papules or nodules on scrotum, glans, or penil shaft, body folds is pathognomonis for ________?
How do we treat scabies?
How do we diagnosis dermatophytoses?
How do we treat tinea capitus?
What autoimmune condition is MC in young patients and described as oral mucousal membrane erosions and ulcerations that lead to skin bullae that rupture easily?
What is a chronic widespread autoimmune blistering skin dz primary of the elderly that does not rupture easily?
How do we treat pemphigus vulgaris and bullous pemphigoid?
What is hypermelanosis of sun exposed areas?
What are risk factors for melasma?
estrogen exposure, OCP, sun exposure
How do we treat melasma?
sunsreen; bleaching agents
If we see a red halo spot that develops into hemorrhagic bullae that undergoes ESCHAR formation then necrosis, what should you consider?
brown recluse spider
Keloids are MC in what ethnicity? How do we treat?
African Americans; corticosteroids
Roseola is caused by what?
What age is MC for roseola?
Describe the clinical manifestation of roseola?
high fever 3-5 days --> no fever --> rose pink appearance
Herpangina is described as small vesicles found where?
soft palate and tonsillar pillars that ulcerate before healing
What are the 3 C's associated with rubeola?
cough, coryza, conjunctivitis
What are small red spots in buccal mucosa with blue/white pale center called?
Koplik spots of Rubeola
T or F: there is URI prodrome with fever with roseola.
Clinical manifestations of rubella include what?
lymphadenopathy (posterior cervical, posterior auricular) --> pink light-red spotted maculopapular rash --> extremities lasting 3 days
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