Term
erythromatous plaques, "silvery" scales in elbows, knees & scalp |
|
Definition
PSORIASIS
[image]
Plaque; Guttate; Inverse; Pustular; Erythrodermic; Psoriatic Arthritis |
|
|
Term
flushing, persistent erythema, telangiectasias & papules or pustules; Adult Caucasians |
|
Definition
ROSACEA:
Erythromatotelangiectatic, Papulopustular, Phymatous, Ocular[image] |
|
|
Term
| inflammatory exanthem, salmon-colored macules, patches or papules; "Christmas Tree" pattern. Women (15-40yrs) Spring & Autumn |
|
Definition
|
|
Term
scaling, red plaques of dermatitis in areas rich in pilosebasceous structures (Scalp, bearded region of face, genital regions, ear canal, paranasal, nasolabial) "Cradel Cap" in infants. Common in pts w/ Parkinson's, Cushings, HIV & Virilizing syndromes of women |
|
Definition
| SEBORRHEIC DERMATITIS:[image] |
|
|
Term
| Pruritic, Purple, Polygonal, Papuls & Plaques. (in flexor surfaces of UE, genitalia & muc. mem) |
|
Definition
|
|
Term
| intense itching, well circumscribed red/violaceous to hyperpigmented lichenified, dry, scaly patches. "Leathery" appearance |
|
Definition
| NEURODERMATITIS/LICHEN SIMPLEX CHRONICUS:[image] |
|
|
Term
common in hands, neck, eyelids, face, genitalia & legs. Erythema, vesicles & bullae, exudation from breaking of blisters, swelling & scaling. Linear vesicles & erythema = poison ivy/plant; type IV delayed hypersensitivity response
|
|
Definition
| ALLERGIC CONTACT DERMATITIS: [image] |
|
|
Term
| pitting edema, scaling, & cayenne peppery/hyperpigmented macules/pathces on the shins (often pruritic) |
|
Definition
| STASIS DERMATITIS: [image] |
|
|
Term
| macules or pathces w/ delicte sacling in UE & trunk in young adults who prespires freely. Lighter skin: lesions pink, yellow or brownish.Dark skin: hypopigmented (abnormally small melanosomes). Malassezia furfur dimorphic fungus (yeast phase: Pityrosporum ovale). DX: ziti & meat balls (KOH preparation) |
|
Definition
|
|
Term
Tinea Corporis: ringworm, small papuls or papulo-vesicles, spread peripherally. Tendency for central clearing w/ red scaly papular borders
Tinea Cruris: erythematous to brwon pathces. Itching & burning complaints
Tinea manuum: Trichophyton Rubrum; can present "two feet & one hand"
Onychomycosis: thickened, lusterless, yellowish, friable nails; Trichophyton Rubrum |
|
Definition
| TINEA INFECTIONS: [image] |
|
|
Term
| highly contagious; very pruritic. Small burrows, vesicles or papuls on hands. Papular pruritic lesions on penis scabies until proven otherwise. Sarcoptes scabie parasite. |
|
Definition
|
|
Term
| Pruritic urticarial papuls anywhere on body. "breakfast, lunch & dinner" bites. Cimex Lectularias bug. Do NOT live on humans. |
|
Definition
|
|
Term
| Type 1 HSV perioral areal; Type 2 HSV genital lesions; well defined, plaques, vesicles & ulcerated skin on baginal mucosa, penis or inner thigh. Latent phase in the dorsal root ganglia. Reactivated w/ stress. Tzanch preparation for dx. |
|
Definition
|
|
Term
| grouped vesicles on erythematous base; dermatomal pattern; erruption clears in 2-1/2 wks. Viral particles distributed to sensory ganglia for latent phase. Tzanck preparation for dx |
|
Definition
|
|
Term
most in children and yound adults
Verruca vulgaris: common wart; in hands, small black puncta on surface (seed)
Flat Wart: grouped, small slightly raised lesion; spread by shaving or scratching
Plantar Wart: on soles, lesions raised Y scaling
Condylomata acuminata: anogenital wart, soft, mooist cauliflower-like lesins
|
|
Definition
|
|
Term
| single or multiple, discrete pustules or papules associated w/ hair follicles. An infxn from w/in follicle Y pilosebaceous unit by S. aureus. |
|
Definition
|
|
Term
| pustules or small abscesses around the hair follicles & progress to dep inflammation ; red, tender, hard nodules; S. aureus pathogenic org. Commonly in post. neck, axillae, & buttocks |
|
Definition
| FURUNCLE/ CARBUNCLE (BOIL):[image] |
|
|
Term
| most common type of drug rxn. Small pink to red macules & papules. Begins 7-14 days after drug exposure (second eruption 1-3 days) |
|
Definition
MACULOPAPULAR/"MORBILIFORM" (EXANTHEM-LIKE):
[image] |
|
|
Term
Wheal, hive or welt is pink, levated, severly pruritic plaque; often annular. Caused by local edema w/in dermis. Antigen-IgE complexes stimulate mast cells. Type I hypersensitivity.
DERMOGRAPHISM: writing on skin, associated w/ urticaria
|
|
Definition
|
|
Term
| 1+ annular or oval erythematous patches or edematous plaques (lips or genitalia). Du to systemic drug exposure; likely propagated by CD8+ T cells |
|
Definition
FIXED DRUG ERUPTION:
[image] |
|
|
Term
presents w/ prodorme of URI, fever & painful skin. Vesicles, bullae, erosion & hemorrhagic crusts of conjuctive, oral mucosa & genitalia.
SJS: <10% BSA
TEN: >30% BSA
Occurs 7-21 days after drug exposure (FATAL)
|
|
Definition
STEVENS-JOHNSON SYN (SJS)/TOXIC EPIDERMAL NECROLYSIS (TEN):
[image] |
|
|
Term
Acute: systemic; dsDNA antibodies; "butterfly" rash
Subacute cutaneous: anti-Ro antibodies; not systemic, very photosensitive, annular scaly erythematous pathces/papulosquamous rings
Discoid: inflammation > scarring; <10% systemic; on ears, face & neck scaly, brightly erythematous plaques > hypopigmentation
|
|
Definition
LUPUS ERYTHMATOUS:
[image] |
|
|
Term
| classic cutaneous lesions> heliotrope rash, shawls sign & Gottron's papules (erythematous scaly/lichenified papules/plaques over joints of hands). Autoimmune CT disease; +ANA; related to internal malignancy |
|
Definition
|
|
Term
| Great imitator; "Lupus Pernio" facial lesion (red/brown non-scaly papules & nodules around the eyes, nose or mouth). Chest X-ray on anyone w/ skin lesions of sarcoid. Systemic dieases of noncaseating granulomas. Serum ACE will be elevated. |
|
Definition
|
|
Term
| hematologic malignancy primarily in the skin; Mycosis Fungoides. Lesions: Patch(pink, slighlty scaly w/ epidermal atrophy), Plaque(raised, red, schaly lesion also on trunk), Tumors(formed when malignant T cells inaved dermis & subcutis) & Erythroderma/Sezary(malignant T-cell circulating in the blood). |
|
Definition
CUTANEOUS T-CELL LYMPHOMA (CTCL):
[image] |
|
|
Term
| lesions start small red papulopustules & spontaneoulsy enlarge into painful ulcers (bullous). Pathergy: mild trauma to intact skin or active lesions causes extension of the ulcers. Associated w/ Crohn's, Ulcrative Colitis, RA, & Monoclonal IgA gammopathy. Do NOT Debride |
|
Definition
PYODERMA GANGRENOSUM:
[image] |
|
|
Term
| depigmented maules or pathcs (hands, feet or face); unilater or symmetry. Patterns: Focal, Unilateral Segmental, Vulgaris, & Universal. Thought to be autoimmune; skin biopsy = absence of melanocytes. Folliculocentric if repigmentation. |
|
Definition
|
|
Term
| autosomal dominants; cafe-au-lait macules (CALM), neurofibromas, frecking in the axillae & groin (Crowe's sign). |
|
Definition
NEUROFIBROMATOSIS- TYPE 1 (NF1 gene on chromosome 17q11):
[image] |
|
|
Term
| autosomal dominant disorder w/ hypopigmented macules (ash leaf), facial angiofibromas (fibrous forehead plaque) collagenomas (shagreen patch), periungual fibromas (Koenen tumors), gingibal fibromas & dental enamel pits. Gene mutations: TSC1 (9q34; hamartic protein) and TSC2 (16p13; tuberin protein) |
|
Definition
TUBEROUS SCLEROSIS:
[image] |
|
|
Term
| acute self-limited inflammatory disorder of the skin & mucous membranes. Target Lesion: central papule w/ 2+ concntric erythematous rings. Reaction pattern secondary to HS infx (most commonly). DX: biopsy & culture. |
|
Definition
ERYTHEMA MULTIFORME:
[image] |
|
|
Term
benign lesions in 4th decade; macular, papular or verrucous lesions; stuck on appearance.
Variants:
Dermatosis Papulosa Nigra: hyperpigmented on face of African Americans
Stucco Keratoses: gray/white on LE
Sign of Leser-Trelat: associated w/ internal malignancy
|
|
Definition
SEBORRHEIC KERATOSIS:
[image]
|
|
|
Term
Benign red to purple dome shaped paules (<1mm-1cm). In adulthood on trunk & extremities. Consist of dilated capillaries & postcapillary venules.
|
|
Definition
| CHERRY ANGIOMA (ACQUIRED HEMANGIOMA):[image] |
|
|
Term
Vascular lesion, bright red to reddish-brown, soft/firm, raised, pedunculated friable nodule. "Band-aid" sign. Children & Young Adults.
|
|
Definition
PYOGENIC GRANULOMA:
[image] |
|
|
Term
Well circumscribed, tan, brown or flesh colored macules, papules or plaques anywhere on body.
Junctional: flat discoloration
Intradermal: flesh colored, pink/tan papule
Compound: tan/brown, red/brown papule w/ histologic components of both junctional & intradermal
|
|
Definition
MELANOCYTIC NEVUS:
[image] |
|
|
Term
Brown papules/plaques, often HAIRY present at birth or by age 2. Small <1.5cm; Medium 1.5-20; Large/Giant >20cm "Bathing Suit Nevus"
|
|
Definition
CONGENITAL MELANOCYTIC NEVUS:
[image] |
|
|
Term
Have morphologic changes i.e. asymmetry, irregular border, color variation (ABCDEs of melanoma). Usually on trunk. Can have increased risk for melanoma.
|
|
Definition
ATYPICAL NEVI (DYSPLASTIC NEVI) "Nevus w/ Architecture Disorder":
[image] |
|
|
Term
On sun damaged skin (head, neck, trunk & extremities). Rough, erythematous papule w/ white to yellow scare (patches/plaques). Pts. report tenderness; can evolve to SCC
|
|
Definition
ACTINIC KERATOSIS:
[image] |
|
|
Term
Pearly, shiny, yellowish (wax-like) nodule w/ a rolled edge & fine vascular pattern at edge. Center may be ulcerated. Commonly on forehead, nose, cheeks, upper lip, scalp & trunk.
Types: Nodular (most common), Superficial (rash-like), Morpheaform (scar-like), Micronodular & Pigmented
|
|
Definition
BASAL CELL CARCINOMA:
[image] |
|
|
Term
Lesions crusted & nodular. Commonly on face, cheek, ear, nose, forehead, dorsum of hand, lower lip or genitalia.
Variants:
Bowen's disease (in-situ)
Erythroplasia of Queyrat (in situ on penis)
Verrucous Carcinoma( associated w/ HPV)
Keratoacanthoma (fast growing; crater-like)
|
|
Definition
SQUAMOUS CELL CARCINOMA:
[image] |
|
|
Term
Pigmented lesion.
ABCDE's: Asymmetry, Border irregularity, Color variation, Diameter ≥6mm & Evolving
Types: Superficial spreading (most common), Nodular, Lentigo maligna (elderly) & Acral lentiginous (dark skin).
Relationship w/ sun exposure!
|
|
Definition
|
|
