Dermatology Flashcards
Erythematous papules, pustules, cysts, nodules, open and aclosed comedones on the face chest and upper back
ACNE VULGARIS
Primary lesion of acne
COMEDONES
Erythematous pruritic or painful papules with central punctum
INSECT BITES
Erythematous macules papules more pruritic at night located at the groin, axillae, webs of finger and toes, elbows and wrists, and other family members have same symptoms
SCABIES
Imaginary circle intersecting sites of involvement in scabies
CIRCLE OF HEBRA
Slightly elevated tortous lines in the skin with a vesicle or pustule at the end containing the mite
BURROWS
Etiologic cause of scabies
SARCOPTES SCABEI
Intense pruritus of the scalp, posterior cervical lymphadenopathy, excoriations and erythematous papules at the nape of the neck and retroauricular area with secondary impetigo
PEDICULOSIS CAPITIS
Dark-red to purple skin discoloration, dusky with borders not clearly delineated, deeper tissue involvement, pain out of proportion to the physical findings, rapid progression of lesion, may have crepitus
NECROTIZING FASCIITIS
Most common portal of entry in the leg for cellulitis
TINEA PEDIS
Loss of eyebrows in leprosy
MADAROSIS
Erythematous greasy yellow brown scaling on scalp eyebrows, ears and perinasal areas, dandruff, can spread beyond the hairline to the forehead
SEBORRHEIC DERMATITIS
Most common location of seborrheic dermatitis
SCALP
In infants yellow brown scaling on the scalp or seborrheic dermatitis of the scalp
CRADLE CAP
Organism implicated in seborrheic dermatitis
PITYROSPORUM OVALE
Pruritic erythematous patches and plaques, scaling, lichenification, on the flexural antecubital popliteal areas in adults and in the face and extensors in infants and children
ATOPIC DERMATITIS
Linear transverse fold below edge of the lower eyelids
DENNIE-MORGAN FOLDS
Discrete, coin-shaped, erythematous, edematous vesicular and crusted patches on the lower extremities and the extensor surfaces of the arms
NUMMULAR ECZEMA
Dematitis sudden in onset, no previous history or exposure, symptoms of pain and burning usually from acidic or alkali substances
IRRITANT CONTACT DERMATITIS
Most common site of involvement of irritant contact dermatitis
HANDS
Eczematous eruption following exposure to a known or unknown allergen, usually appearing first at the site of contact, associated with plants, nickel and other compounds, can form patterns on the skin
ALLERGIC CONTACT DERMATITIS
Most common cause of allergic contact dermatitis
EXPOSURE TO PLANTS
Erythematous papule and plaques covered with silvery scales on elbows, knees, scalp, with nail pits and other nail changes
PSORIASIS
Pinpoint bleeding spots from exposure of dermal papillae when scales are scraped off in psoriasis
AUSPITZ SIGN
Psoriasis involving the folds, recesses, and flexor areas such as axillae, groin, inframammary folds
INVERSE PSORIASIS
Abrupt eruption of psoriasis lesions following acute infection such as streptococcal pharyngitis
GUTTATE PSORIASIS
Circular sharply circumscribed slightly erythematous dry scaly hypopigmented patches with advancing scaly border and central clearing producing annular outlines
TINEA
Most common fungal disease
TINEA PEDIS
Causes majority of tinea pedis
TRICHOPHYTON RUBRUM
Infection of the nail plate
ONYCHOMYCOSIS
Etiologic agent of Tinea versicolor
MALASSEZIA FURFUR
Classical microscopic finding in Tinea versicolor of short thick fungal hyphae and large numbers of variously sized spores
SPAGHETTI AND MEATBALLS
Salmon colored macules and papules, collarette of scaling, scales tend to fold along the long axis of line of stretch follows skin lines (hanging curtains or “Christmas tree” sign), herald patch
PITYRIASIS ROSEA
Symmetrical, generalized, maculopapular eruptions, polymorphous, usually over the face, shoulders, flanks and palms and soles with scaling, with suggestive sexual history, painless genital ulcer
SECONDARY SYPHILIS
Papular lesions located on folds of moist skin usually around genitals and anus, may become hypertrophic, forming soft red mushroom-like mass, moist weeping gray surface
CONDYLOMATA LATA
Most frequent manifestation of orolabial herpes
FEVER BLISTER OR COLD SORE
Most common complication of varicella
SECONDARY BACTERIAL INFECTION
Vesicles on the side and tip of nose indicative of ophthalmic zoster
HUTCHINSON’S SIGN
Involvement of the facial and auditory nerves by varicella zoster virus
RAMSAY-HUNT SYNDROME
Large, tense blisters on flexor surfaces, groin axillae, and trunk, subepidermal blister, anti-hemidesmosome antibodies
BULLOUS PEMPHIGOID
Papules, vesicles, and pustules with honey-colored crusts
IMPETIGO CONTAGIOSA
Variant of impetigo, inadequat
ely treated leading to punched out ulcerative lesions
ECTHYMA
Blisters, epidermal detachment resulting from epidermal necrosis, target lesions, dusky purpuric macules with mucosal involvement,
SJS
Blisters, epidermal detachment resulting from epidermal necrosis, target lesions, dusky purpuric macules with mucosal involvement, >30% body surface area involved
TEN
Multiple erythematous plaques with target or iris lesion morphology, usually precipitated by recent new drug ingestion, often triggered by mycoplasma pneumonia and HSV
ERYTHEMA MULTIFORME
Manual pressure to the skin may elicit separation of the epidermis (found in staphylococcal scalded skin syndrome, SJS, TEN, and pemphigus vulgaris)
NIKOLSKY’S SIGN
Most common pattern of drug-induced reaction
MORBILIFORM OR MACULOPAPULAR
Young children with individual lesions of smooth surfaced , firm, dome-shaped, pearly, fleshy papules with central umbilication
MOLLUSCUM CONTAGIOSUM
Numerous small eosinophilic and basophilic inclusion bodies found in histology of molluscum contagiosum
HENDERSON-PATERSON BODIES
Brown-black plaques with adherent greasy scales, stuck on appearance
SEBORRHEIC KERATOSIS
Sudden appearance of multiple seborrheic keratosis suggestive of visceral and hematologic malignancy
SIGN OF LESER TRELAT
Erythematous macules and papules, macerated skin areas and satellite lesions, white friable patches on mucosal surfaces, immunocompromised states
CANDIDAL INFECTION
Increased thickness of the stratum corneum
HYPERKERATOSIS
Hyperkeratosis with retention of nuclei in stratum corneum
PARAKERATOSIS
Epidermal accumulation of edematous fluid in intracellular space
SPONGIOSIS
Process referring to loss of cohesion between epidermal cells
ACANTHOLYSIS
Violaceous flat-topped papules and plaques with gray lines (Wickham.s striae)
LICHEN PLANUS
Condition in dermatological diseases wherein traumatized areas tend to develop new lesions (found in verruca and psoriasis)
KOEBNER PHENOMENON
