Acanthosis Nigricans
- Endocrine Disorders
- Diabetes Mellitus
- Obesity
- Malignancy
- Velvety Plaques
- Dark, Thickened Flexural Areas
- Hyperkeratosis with Melanocytes
- Treat Underlying Disorder
Vitiligo
- Autoimmune Destruction of Melanocytes
- Hypopigmentation
- Acral Areas and Around Orifices
- Clinical Presentation + Woods Lamp
- Other Autoimmune Diseases
- Glucocorticoids
- Tacrolimus
- Phototherapy
Scabies
- Sarcoptes Scabiei Mite
- Pruritus
- Papules with Burrows
- Webs of Fingers and Toes
- Axilla and Nipples
- Skin Scraping
- Dermoscopy
- Mites and Eggs on Magnification
- Permethrin Cream
- Oral Ivermectin
- Lindane Cream
- Wash All Linens In Hot Water
Pityriasis Rosea
- Preceded by Upper Respiratory Tract Infection
- Single "Herald Patch"
- "Christmas Tree" Distribution
- Plaques with Collarette Scale
- Self-resolving in 6-8 Weeks
Lichen Planus
- Mucocutaneous Disorder
- 30-60 year olds
- Pruritic
- Plaques or Papules
- Purple & Polygonal
- Often Mucosal or Genital Involvement
- Wickham Striae
- Biopsy
- Sawtooth Infiltrate of Lymphocytes
- Topical Corticosteroids
- Hepatitis C Association
Erythema Nodosum
- Panniculitis
- Painful Inflammation
- Subcutaneous Fat
- Anterior Shins
- Coccidioidomycosis
- Pregnancy or OCP Use
- Crohn's Disease
- Tuberculosis (TB)
- Histoplasmosis
- Sarcoidosis
- Ulcerative Colitis
Psoriasis
- Epidermal Hyperproliferation Keratinocytes
- Defined Red Salmon Plaques
- Silvery Scales
- Extensor Surfaces
- Bleeding when Removed
- Auspitz Sign
- Pruritus
- Nail Changes
- Munro Microabscesses
- Nucleated Cells in Stratum Corneum
- Retinoids
- Topical Corticosteroids
- Tar
- Immunosuppressants
Atopic Dermatitis / Eczema
- Pruritic Vesicles
- Inflammatory Skin Rash
- Cheeks in Children
- Skin Flexural Areas
- Associated with Asthma and Allergic Rhinitis
- Tacrolimus
- Moisturizers
- Corticosteroids
- Phototherapy
- Avoid Triggers
- Antihistamines
Actinic Keratosis
- Sun Exposure
- Papules or Plaques
- Small, Rough
- Erythematous
- Precursor to Squamous Cell Carcinoma
Rosacea
- Episodes Provoked by Alcohol, Heat, or Emotions
- Facial Flushing and Telangiectasias
- Sun Protection
- Topical Brimonidine
- Papules and Pustules
- Topical Metronidazole
- Rhinophyma
- Laser Ablation
- Avoid Triggers
Necrotizing Fasciitis Pathophysiology and Characteristics
- Bacterial Infection of Muscle Fascia and Subcutaneous Fat
- Polymicrobial or Monomicrobial
- Polymicrobial: Anaerobe + Gram Negative Enterobacteriaceae
- Monomicrobial: Group A Streptococcus or Staph Aureus
- Edema Extending Beyond Erythema
- Crepitus
- Pain Out of Proportion (POOP)
- Anesthesia Over Affected Area (Late Finding)
Melanocytic Nevus
- Benign Tumor of Melanocytes
- Nested Proliferations at Dermal-Epidermal Junction
- Junctional
- Intradermal
- Genetics
- Childhood Sun Exposure
- Melanoma
Necrotizing Fasciitis Diagnosis and Treatment
- Usually a Clinical Diagnosis
- Soft Tissue Gas On CT
- Emergent Surgical Debridement
- Vasopressors and Fluids
- IV Immune Globulin If Strep Toxic Shock Syndrome
- Carbapenem Or Piperacillin-Tazobactam
- PLUS Clindamycin
- PLUS MRSA Coverage
Acne Vulgaris Presentation and Pathophysiology
- Papules/Comedones in Mild Cases
- Blackheads Open, Whiteheads Closed
- Pustules in Mild-Moderate Cases
- Nodules/Cysts in Severe Cases
- Inflammation at Hair Follicle/Sebaceous Gland
- Increased Androgens
- Colonization by Cutibacterium Acnes
Tinea (Dermatophytes): General Characteristics And Management
- Fungal Cutaneous Infection
- Trichophyton
- Microsporum
- Epidermophyton
- Pruritic Rash
- Segmented Hyphae On KOH
- Topical Azole
- Terbinafine For Tinea Unguium (Nails)
Verrucae
- Warts
- Papillary Cauliflower Like Growths
- Low-Risk Human Papillomavirus
- Epidermal Hyperplasia and Hyperkeratosis
- Koilocytes
- No Treatment Needed
- Topical Salicylic Acid
- Cryotherapy
Erythema Multiforme
- Type IV Hypersensitivity Reaction
- HSV
- Mycoplasma Pneumoniae
- Drugs
- Targetoid Lesions
- Symmetrical Distribution
- EM Minor: Mild Symptoms
- EM Major: Mucosal Involvement
- Self-Limiting
Raynaud Phenomenon Characteristics and Presentation
- Stress-induced Vasospasm
- Primary Raynaud Phenomenon
- Idiopathic
- Reversible
- Symmetric
- Secondary Raynaud Phenomenon
- Autoimmune Diseases
- Drugs
- Severe Pain
- Ischemic Phase
- Hypoxic Phase
- Hyperemic Phase
Raynaud Phenomenon Diagnosis and Management
- Nailfold Capillary Microscopy
- Complete Blood Count (CBC)
- Antibody Testing
- Avoid Triggers
- Smoking Cessation
- Nifedipine
- Topical Nitroglycerin
Impetigo
- Transmission
- Incubation
- Non-Bullous
- Bullous
- Clinical Presentation
- Antibiotics
- Hygiene
- Return to Work or School
- Post-streptococcal Glomerulonephritis
- Rheumatic Fever
- Staphylococcal Scalded Skin Syndrome