Thomas Shared "Derm" - 25 Picmonics

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Derm

Atopic Dermatitis / Eczema
Presentation
Pruritic Vesicles
Inflammatory Skin Rash
Cheeks in Children
Skin Flexural Areas
Associated with Asthma and Allergic Rhinitis
Treatment
Tacrolimus
Moisturizers
Corticosteroids
Phototherapy
Avoid Triggers
Antihistamines
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2 mins
Actinic Keratosis
Sun Exposure
Papules or Plaques
Small, Rough
Erythematous
Precursor to Squamous Cell Carcinoma
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53 secs
Psoriasis
Presentation
Epidermal Hyperproliferation Keratinocytes
Defined Red Salmon Plaques
Silvery Scales
Extensor Surfaces
Bleeding when Removed
Auspitz Sign
Pruritus
Nail Changes
Histological Finding
Munro Microabscesses
Nucleated Cells in Stratum Corneum
Treatment
Retinoids
Topical Corticosteroids
Tar
Immunosuppressants
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2 mins
Vitiligo
Pathophysiology
Autoimmune Destruction of Melanocytes
Presentation
Hypopigmentation
Acral Areas and Around Orifices
Diagnosis
Clinical Presentation + Woods Lamp
Risk Factors
Other Autoimmune Diseases
Treatment
Glucocorticoids
Tacrolimus
Phototherapy
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2 mins
Pemphigus Vulgaris
Pathophysiology
Autoantibodies against desmosomes
Symptoms
Flaccid Bullae on Skin
Oral Mucosa Involvement
Intraepidermal Acantholysis
Fluid Loss
Infection
Nikolsky Positive
Diagnosis
Biopsy showing Autoantibodies
Treatment
IVIG and Plasmapheresis
Oral Steroids
Immunosuppressants
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2 mins
Stevens-Johnson Syndrome
Etiologies
Drugs
Symptoms
< 10% of Body Surface Area (BSA) Involved
10-30% BSA Overlaps with Toxic Epidermal Necrolysis (TEN)
Fever
Affects Skin and Mucous Membranes
Bullae Formation
Necrosis
Sloughing of Skin
High Mortality Rate
Treatment
Supportive Care
IVIG (Intravenous Immunoglobulin)
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3 mins
Bullous Pemphigoid
Linear Deposits of IgG
Affects Hemidesmosomes
Epidermal Basement Membrane
Tense Blisters on Skin
Nikolsky Negative
Contain Eosinophils
Rarely Affect Oral Mucosa
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2 mins
Pityriasis Rosea
Preceded by Upper Respiratory Tract Infection
Single "Herald Patch"
"Christmas Tree" Distribution
Plaques with Collarette Scale
Self-resolving in 6-8 Weeks
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1 min
Basal Cell Carcinoma of the Skin
Pathophysiology
Most Common Skin Cancer
2/3 of Cases Due to UV Light Exposure
Pink, Pearl-like Lesions
Rolled Borders
Telangiectasias
Commonly Upper Lip
Diagnosis
Shave Biopsy
Pallisading Nuclei
Treatment
Mohs Micrographic Surgery
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2 mins
Pityriasis Versicolor (Tinea versicolor)
Mechanism
Lipid-Dependent Fungus
Fatty Acids Damage Melanocytes
Malassezia Furfur
Hot, Humid Weather
Signs and Symptoms
Hypopigmentation
Hyperpigmented Patches
Diagnosis
Spaghetti and Meatball Appearance on KOH Prep
Fragmented Hyphae with Clusters of Yeast
Treatment
Topical or Oral Antifungals
Selenium Sulfide
Zinc
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4 mins
Hirsuit-
Meaning
Hairy
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31 secs
Seborrheic Dermatitis
Reaction to Malassezia yeast
Scales on scalp, face, central chest, external auditory canals
May be hypopigmented
Thin scaling plaques
Erythema
Treatment
Desonide (low potency topical steroid)
Ketoconazole cream
Antidandruff shampoo
Infantile seborrheic dermatitis is cradle cap
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Acne Vulgaris Presentation and Pathophysiology
Presentation
Papules/Comedones in Mild Cases
Blackheads Open, Whiteheads Closed
Pustules in Mild-Moderate Cases
Nodules/Cysts in Severe Cases
Pathophysiology
Inflammation at Hair Follicle/Sebaceous Gland
Increased Androgens
Colonization by Cutibacterium Acnes
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3 mins
Rosacea
Characteristics
Episodes Provoked by Alcohol, Heat, or Emotions
Erythematotelangiectatic Rosacea
Facial Flushing and Telangiectasias
Sun Protection
Topical Brimonidine
Papulopustular Rosacea
Papules and Pustules
Topical Metronidazole
Phymatous Rosacea
Rhinophyma
Laser Ablation
Considerations
Avoid Triggers
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2 mins
Types of Burns
Superficial Thickness
Sunburn
Superficial Partial Thickness
Blisters
Blanching
Deep Partial Thickness
Little or Non-blanching
Full Thickness
Waxy white, yellow or black
Decreased Pain
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2 mins
Epidermal inclusion cyst
Mobile subcutaneous nodule with punctum
"Sebaceous cyst"
Cheesy-white debris
Surgical excision
Benign (does not require treatment)
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Verrucae
Warts
Characteristics
Papillary Cauliflower Like Growths
Low-Risk Human Papillomavirus
Epidermal Hyperplasia and Hyperkeratosis
Koilocytes
Management
No Treatment Needed
Topical Salicylic Acid
Cryotherapy
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2 mins
Mollusca Contagiosum
Pox Virus
Central Umbilication
Lasts 3-9 months
Treatment
Canthacur
Imiquimod
Currettage
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Tinea (Dermatophytes): General Characteristics And Management
Fungal Cutaneous Infection
Organisms
Trichophyton
Microsporum
Epidermophyton
Clinical Features
Pruritic Rash
Segmented Hyphae On KOH
Management
Topical Azole
Terbinafine For Tinea Unguium (Nails)
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2 mins
Squamous Cell Carcinoma of the Skin
Epidemiology
2nd Most Common Skin Cancer
UV Light Exposure
Long-term Immunosuppression
Arsenic Exposure
Signs/Symptoms
Ulcerative Red Lesion
Precursor Actinic Keratosis
Commonly Lower Lip
Diagnosis
Biopsy shows Keratin Pearls
Treatment
Mohs Micrographic Surgery
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2 mins

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