Most common cause of skin cancer in solid organ transplant recipients
Squamous cell cancer
Diagnosis of pink papules and pustules on central face in middle-aged to older patients
Rosacea
Depigmented, symmetric, well-demarcated macules without scale
Vitiligo
Diagnosis for pruritic papules and burrows in interdigital spaces
Scabies
“Stuck on” brown or black papules/plaques
Seborrheic keratosis
Diagnosis suggested when lateral inward digital pressure over lesion produces central dimpling
Dermatofibroma (accept fibrous histiocytoma)
Topical treatments for papulopustular rosacea
Metronidazole, azelaic acid, ivermectin
Patchy hyperpigmentation of the face occurring during pregnancy
Melasma (chloasma, mask of pregnancy)
Treatment of scabies
Permethrin or ivermectin
Cutaneous squamous cell carcinoma precursor
Actinic keratosis
Rash typically associated with end-stage renal disease and high PTH levels
Calciphylaxis
Over-the-counter treatment of seborrheic dermatitis
Selenium sulfide or zinc pyrithione shampoos
Pigmented macule with a surrounding hypopigmentation
Halo nevus
Cause of linearly arranged pruritic papules found in the morning
Bed bug bites
Pearly or translucent nodule or papule with arborizing telangiectasias, often with central depression with rolled waxy border
Nodular basal cell carcinoma
Common inflammatory skin disorder that comes in erythrodermic, inverse, and guttate forms
Psoriasis
Diagnosis for asymptomatic hyper- or hypopigmented oval macules on trunk that can coalesce into patches
Pityriasis versicolor
Longitudinal brown pigmentation of nail plate
Melanonychia
Diagnosis of blistering disease associated with urticarial plaques progressing to tense bullae
Bullous pemphigoid
Blue-black nodular skin cancer
Nodular melanoma
Metal whose ingestion causes blue skin discoloration
Silver
Characteristics of candidal intertrigo
Erythematous patches with satellite macerated pustules
Increased skin fragility of hands and hypertrichosis in sun-exposed areas
Porphyria cutanea tarda
Diagnosis of flaccid oral/mucosal bullae leaving erosions upon rupture
Pemphigus vulgaris
Primary prognostic feature for melanoma
Depth of invasion (Breslow depth)