d3 Flashcards
Clinical feature of TEN/SJS?
4-28 days after the first and 2 days after the second exposure
Acute influenza-like prodrome
Rapid onset erythematous bullae, macule, and vesicle
Necrosis and sloughing of the epidermis
Mucosal involvement
S.Sign–Sepsis sign including AMS and Seizure
SJS and TEN nomniclature?
<10 % SJS
>30% TEN
10-30 % 0verlap
Common triggers?
Drug Another factor(M.Pnumonia.GVH disease and vaccination)
Drug?
Allopurinol Ab(TMP-SMX) Anticonvelsant(Carbamazepine,Lamotrigen and Phenitoin) NSAID SULFASALAZINE
Risk factor for onychomycosis?
T.Runrum Old age T.Pedis DM PAD
Exam finding?
Thick, Brittle nail and discolored mail
Diagnosis?
KOH, PAS, and culture
Managment?
1st line:Terbinafine and intraconazole
2nd line: Grisofulvin,fluconazol
Do condylomata accumulate etiology?
HPV
MC STI in the USA
Lesion?
Verrucous
Papiliform
Pink/skin-colored
may have Iching and burning
Managment?
Usually self-limited
Trichloroacetic acid/podophyllin
Immunotherapy(imiquimod)
Surgery(cryosurgery,excision or lesser tx)
Pudofolliculitis barbe pathophysiology?
Enterance of hair to parafolicular line
Occur in area of barbe
Shaving by the blade is risky(leave hair below skin)
lesion?
area of barbe
Papular
Painful
Sign of complication
Sign of complication?
Hyperpigmentation
Bacterial infection
Keloid
Managment?
Leave hair cutting
Use a single blade or non-blade cutter(clamper)
Hot Water compression before shaving
Managment of psoriasis?
Topical if area <5%
Systemic if area > 5 and presence of P.artheritis
Topical Tx?
Topical GC
Topical vit D(calcipotriene), calcineurin inhibitor or retinoid if GC induced skin thinking feared
Systemic?
UV phototherapy
Methotrexate
Apremilast
TNF alpha inhibitor(apremilast)
Dermatofibroma?
Usually, affect LE Hyperpigmented Painless Discrete and firm dimple when periphery compressed(buthole sign)
When did treatment require?
If symptomatic
Cosmetic reason
Rosacea CM?
chronic
erythematous
affect convex of face
symptom(flushing, skin sensitivity…..)
Pathophysiology?
A chronic inflammatory reaction to microorganism, UV light, or vasomotor dysfunction
Symptoms are precipitated by?
Hot/spicy food
Alcohol
Sun exposure
High ambient Tempratue
managment?
General measure
Specific Tx based on the type
General measure?
Maybe enough for mild and moderate case
A gentle cleanser and emollient
Avoid precipitating factor
Use for all type
Erythematotelengectatic rosacea?
erythema, flushing, and telangiectasia
Topical brimonidine
Laser/Intense pulsed light therapy
Papulopustular rosacea?
superimposed infection
papule and pustule
1st line: Topical metronidazole/azelik acide/ivermectine
2nd line: Oral tetracycline
Phymatous rosacea?
Irregularly thickened skin
Oral isotritinoin
Laser therapy/surgery
Ocular rosacea?
Burning, foreign sensation, blepharitis, conjunctivitis and keratitis, and corneal ulcer
Lid scrubs and ocular lubricant
Topical/systemic antibiotic
Irritant contact dermatitis cause?
Physical/chemical irritation
Soap/deteregent,chemical/acide/alkali
CM?
commonly in hard
erythema
fissure
Allergic contact dermatitis triggers?
Poison oak/ivy/sumac Nicker Ruber/latex Leather dye medication
CM?
Well demarcated area of skin in contact papule/vesicle chronic lichenification weeping crusting
Disease-associated with seborrheic dermatitis?
Parkinson
HIV
Urushiol?
MCC of Allergic CT
Produced by Toxicodendron (poison IV/oak/sumac)
Founded in a wooded area and unclean building
Form linear eczematous lesion at the area of contact
The lesion may have a secondary infection
Drug-induced acne triggers?
Glucocorticoid,androgen Immunomodulator(azathioprine, EDGF inhibitor......) Anticonvulsant (phenitoin) Antipsychotic Antituberculosis drug(Isoniazide)
Presentation?
Monomorphic papule/pustule
Lack of comedones, cyst, and nodule
Location and age may be atypical for acne
Managment?
Stope the causative drug
Anti Acne Tx is not effective
Chery hemangioma caracter?
MC benign VT Common in 3rd and 4th decade Papular Small Bright red Sharpley demarcated always cutaneous(not involve mucosa or deep tishue)
pathology?
congested capillary and post-capillary venule in the papillary dermis
prognosis?
Not regress
Tx only for the cosmic reason
Clinical presentation of urticaria?
Well-Circumscribed Raised Erythematous Itchy It May have a different shape Develop within minute and hour and resolve within 24 hr Central pallor
Etiology?
Infection IgE mediated Direct mast cell activation NSAID 50% Idiopathic
Do factors cause direct mast cell activation?
Narcotics
Muscle relaxant
Contrast medication
mast cell activation in the superficial dermis?
Urticaria
Mast cell activation in the deep dermis and sc tissue?
angioedema
Tuberous sclerosis manifestation?
Dermatologic
Nurologic
CVS
Renal
Dermatologic?
Ash-leaf spot
Shagreen patches
Malar angiofibroma
Ash-leaf spot?
Hypopigmented lesion
angiofibroma?
Red/flesh-colored papule
Mistaken as acne
Shagreen patches?
A shagreen patch (arrows) is an irregularly shaped, irregularly thickened, slightly elevated soft skin-colored patch, usually on the lower back, made up of excess fibrous tissue.
Neurologic?
CNS tumor (subependymal tumor..) Epilepsy(infantile spasm..) Intellectual disability Autism Behavioral disorder(hyperactivity)
CVS?
Rhabdomyoma
Renal?
Angiomyolipoma
HPV wart common in?
Plantar
Palmar
genital
Plantar common in?
Young
HIV
Organ transplant
Moccasin-type tinea pedis?
scales/fissure
Hyperkeratosis
Flaking
extension to sole, side, or dorsum of the foot
Vesiculobullous type?
painful bullae
erythema(lateral foot)
Female & male pattern hair loss?
Chronic, progressive thinning of hair
F: Vertex, the center of the hair, No hairline
M: Vertex, Temporal area, frontal hairline
Genetics?
Polygenic inheritance Hormonal factor (DHT)
Managment?
M:minoxidine,fenastride
F:Minoxidine
Androgen level in FPHL?
mostly normal
elevated in case of PCOS
Acute palmoplantar eczema also called?
dyshidrotic eczema
CM?
Recurrent acute episode
Deep-seated, pruritic vesicle on hand and feet
Palm and sole with typical palm side involvement
Complication?
Desquametization
Chronic dermatitis
Secondary infection
Biopsy?
Intraepidrmal spongiosis
lymphocyte infiltration
management?
emollient
potent topical medication
Epidermolysis bullosa?
Inherit disorder Epithelial fragility(bullae, erosion, and ulcer) Triggered by minor trauma Lesion heal w/o scaring Thickening of the skin of the sole
Benefit of antiviral in herps zoster?
Should begin in 72 hr
Decrease symptom duration
Decrease PHN risk
the d/c between drug-induced and idiopathic lichens planus?
DILP: more diffuse
What is a drug that can cause DILP?
ACE inhibitor
Tiazide
Betablocker
Hydroxychloroquine
Pemphigus vulgaris AB taarget?
Desmosome
CM?
Flaccid bulla and ulcer
Mucosal erosion
Nikolisky sign
Histopathology?
Intraepidermal cleavage
acantholysis
tombstone cells along the basal layer
Managment?
Systemic CS
CS sparing agents
Aggressive wound care
CM of erythema nodusum?
Tender
Erythematous
Nodule
MC in the anterior leg
Etiology?
Infection IBD Sarcoidosis Medication(Ab or OCP) Malignancy
Pathology?
Septal paniculitis
No vasulitis
Natural history?
Spontaneous resolution
Hyperpigmentation
Sebhoric keratosis?
Any part of the body except palm and sole Flat macule Wart-like lesion Pink/white Brown/dark Velvety/greasy surface Stuck-on lesion
Biopsy?
Basal cell
Variable pigmentation
Hyperkeratosis
Keratine containing cyst
Lether trelat sign?
Multiple seborrheic keratosi
Indicate occult internal malignancy
managment?
Observation
removal if cosmetic
Ichthyosis Vulgaris?
Inherited disorder
Due to filaggrin gene mu
CM?
Diffuse dermal scaling Dry Rough horny Plates resemble reptile
Prognosis?
Mild in early life and sever latter
life long disease
Managment?
Emollient only is not effective
Keratinolytics(coal tar/salicylic acid)
Topical retinoid for controlling the symptom