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82 Cards in this Set
- Front
- Back
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Epidermis skin infection
- contagious - caused by S.aureus and S.pyogenes. - HONEY colored crust |
Impetigo
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bullous impetigo is caused by which organism?
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toxin producing S. aureus
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infection caused by Staph or Strep that extends into the dermis, usually from an untreated impetigo
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Ecthyma
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deep follicullitis can lead to what dermatological conditions?
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folliculitis->furuncule->carbuncle->abscess
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organism that causes "run of the mill" folliculitis
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Staph aureus
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which organism is responsible for Hot Tub folliculitis?
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Pseudomona aureginosa
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pustular infection, deep folliculitis of the beard caused by S. aureus
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Sycosis Barbae
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acute, red, hot, deep, tender nodule caused by Staph.
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Furuncle (boil)
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most common cause of cyclic fevers?
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abscess
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abcsess of nail fold caused by S. aureus
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acute paronychia
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superficial soft tissue infection, usually affects superficial lymph vessels,
Edematous and raised pink red plaques w well defined border. MC caused by Strep. pyogenes |
Erysipelas
"St. Anthony's fire" |
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deep soft tissue infection, may extend to muscle, fascia, and bone.
affects dermal connective tissue and BV. Flat red indurated plaques with ill defined border.MC Caused by Strep. pyogenes but also to less extent by s. aureus. |
Cellulitis
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rapid progession of infectionw extensive necrosis of SC tissueand overlying skin, may involve fascia
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gangrenous cellulitis
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gram + organism that causes
- Scalded skin synd - Toxic shock synd - Scarlett fever |
Staphylococcus aureus
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widespread detachment of the superficial layers of the epidermis resembling scalding w underlying erythema.
Mainly in infants < 2y/o |
Staph. Scalded skin synd.
- by S.aureus, phage Gp II, type 71 "Ritters disease" |
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Shock, fever, hypotension, casued by enterotoxins and exotoxins released by S.aureus. Toxin mediated systemic disease
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Toxin Shock Syndrome
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microorganism that causes Scarlet fever
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exotoxin of Gp. A Strep. pyogenes
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Linear petechiae in body folds found in scarlet fever, along w straberry tongue and punctate erythema
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Pastias sign
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sequelae from gp A streptococcus pyogenes.
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- rheumatic fever
- cardiomyopathy -scarlett fever |
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complication of infective endocarditis that leads to vasculitis and purpura.
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embolization
throwing of bacterial clot into the blood stream that deposit in small vessels. |
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common pathogen of infective endocaditis
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S. aureus
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non painful small hemorrhagic papules in palms and soles, seen in infective endocarditis
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Janeway lesions
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tender PAINFUL purplish nodules in fingers and toes seen in infective endocarditis
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Oslers nodes- deep tissue swelling
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gram + skin condition that is commonly seen in raw fish handlers. violaceous localized swelling and cellulitis
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Erysipeliod
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gram + skin condition that presents with BROWN-BLACK ESCHAR in its cutaneous type.
common in fur/wool handlers |
Anthrax
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gram + skin condition caused by Corynebacterium minutissimum. Affects intertriginous areas w "CORAL RED" fluorescence in woods light exam
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Erythrasma
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this gram (--) causes:
- hot tub folliculitis - otitis ext/malignant otitis - green nail - ecthyma gangrenosum |
Pseudomonas
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ecthyma gangrenosum caused by pseudomonas, mc in buttock and extemities is commonly seen in what populations.
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HIV (+) neonates
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anything that produced a GREEN pigmented skin condition, will most likely be casued by>
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Pseudomona
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PAINFUL soft punched out chancre/ulcer caused by Haemophilus ducreyi
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Chancroid
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positive culture for Chancroid will present this pattern:
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"school of fish pattern"
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painless papulonodules that spreads and becomes vegetative and ulcerate
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granuloma inguinale
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STI caused by Klebsiella granulomatis
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Granuloma ingunale
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PAINLESS genital ulcer at primary stage, that develops into painful swelling -buboes- that become ulcerative and extensive in the secondary stage
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lymphogranuloma venereum
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microorganism that causes lymphogranuloma venereum
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Chlamydia trachomatis
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skin condition comprised of hemorrhagic plaques and bullae acquired via GI, after eating raw seafood
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vibrio vulnificus
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"Rose spots" 2-5mm macules/papules
- acquired by contaminated water/food - pet turtles |
salmonellosis
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- vegetative wart like lesions
disease transmitted by the SAND FLY - Carrions disease- - Oroya fever - Verruga peruana |
Bartonellosis, by B. bacilliformis
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infectious diseases that present w ascending lymphadenopathy
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- Cat-scratch disease
- sporotrichosis - mycobacterium marinum - nocardiosis |
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microorganism that causes Cat-scratch disease
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Bartonella henselae
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cutaneous vascular tumors, exclusive to HIV patients caused by the same organism as cat-scratch disease
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Bacillary angiomatosis
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the ULCERO-GLANDular type of this condition is the most common. MC in rabitt hadlers.
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Tularemia, caused by Francisella tularensis
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type of leprosy that affects the cell mediated immunity; sp cytotoxic T cells, localized skin lesions, early nerve destruction, hypopigmented anesthetic macules. good control of infection
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Tuberculoid leprosy
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leprosy that attacks humoral immunity, B cells. Poor control of infection, late nerve involvement. Inflitrative diffuse skin involvement
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Lepromatous leprosy
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manifestations of secondary infection of cutaneous tuberculosis
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- lupus vulgaris - crusted apple jelly
- scrofuloderma |
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mycobacterial infection acquired by inoculation of exposed skin in aqueous infection
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Atypical mycobacterium
- M. marinum |
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deep ulceration painless, usually in the legs, caused by M. ulcerans
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Buruli ulcer
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mycobacterium infection acquired after surgical or traumatic inoculation
- in nail salons |
m. fortuitum
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3 stages of lyme disease
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1- erythema migrans-joint pain, malaise, HA
2- erythema chronicum migrans, lymphocytoma cutis, neuro ss. 3- polyneuropathy, chronic encephalitis, acrodermatitis chronica |
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varicella like rash
- trans by house mouse mite - crusted ulceration like cig. burn: black eschar |
Ricketssial pox
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- most severe ricketssial fever
- tick bite (dermacentor spp) - rash begins on wrist - caused by R.rickettsii |
Rocky Mountain Spotted Fever
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mucocutaneous candidiasis, caused by candida, s. aureus. casues fissures and maceration at corners of mouth
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Perleche- angular chelitis
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Infections caused by actinomyces and nocardia, both filamentous BACTERIA
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Actinomycetoma
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caused by Actinomyces israelii
- filamentous bacteria - lumpy jaw - sulfur granules in purulent material |
Actinomyces
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gram + acid fast filamentous aerobic bacterium, can present as lymphocutaneous dis. or mycetoma
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Nocardiosis, caused by Nocardia braziliensis and ateroides.
traumatic implantation from soil |
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- caused by Fonsecaea pedrosoi
- traumatic implantation from soil - biopsy shows "copper pennies" |
Chromoblastomycosis
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- seen in gardners and alcoholics
- in the lymphocutaneous forms the lesions ascend along lymph channels; lymphangitis spread - caused by s. schenkii |
Sporotrichosis
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caused by Rhizopus spp.
necrotic abscess, common in immunocompromised pt. |
mucormycosis
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- found in soil, pigeon droppings
- opportunistic - MOLLUSCUM like lesions - Dx. w India ink |
Cryptococcsis
by C. neoformans |
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- ohio river valley
- inhalation of spores - molluscum like lesions - H. capsulatum |
Histoplasmosis
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- san joaquin valley fever
- SW US, N Mex - molluscum like lesions |
Coccidiomycosis
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human papilloma virus types a/w cervical CA
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16
18 31 33 |
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caused by Pox virus,
umbilicated, flesh colores, dome shaped skin lesions |
Molluscum Contagiosum
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caused by POX virus
ecthyma contagiosum - sheeps |
Orf
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conditions that present w molluscum like lesions
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CCHIP
cryptococcus coccidioidomycosis histplasmosis penicillinosis |
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highly contagious
- airborne transmission - prodrome 3 C's cough, coryza, cnjunctivitis - Koplik spots; buccal mucosa |
Measles
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human herpes virus a/w kaposi sarcoma
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HHV - 8
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slapped cheek appearance
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erythema infectiosum
- parvo virus B19 |
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- coxsackie virus A 16, Enterovirus 71, rash
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Hand-Foot-Mouth disease
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Major cause of death in HIV
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fatal pulmonary lung disease, related to VZV
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virally induced hyperplasia of oral mucosa, highly predictive of HIV and progression to AIDS
unable to scape off tongue |
Oral hairy leukoplakia, by EBV
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Most common skin infection found in HIV
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folliculitis, caused by s. aureus
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If a patient w HIV acquires ecthyma gangrenosum by pseudomona, what other findings might you suspect
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Neutropenia and Bateremia
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ideal diagnostic test for syphilis
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Dark field microscopy
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Most common infection in HIV
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Oral thrush by cadidiasis
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Most common systemic fungal infection in HIV when CD4 < 250
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Cryptococcus
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Itchy, not painful, non infectious skin condition found in HIV pt. cd4 < 100q
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Eosinophilic folliculitis
tx. w topical steroids |
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most important in HIV
skin condition due to the loss of ez Uroporphyrinogen decarboxylase, crusted vesicle that heal w hyperpigmentation and scarring |
Porphyria cutanea tarda
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most common offender that causes cutaneous drug eruptions
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TMP/SMX Bactrim
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most common lymphoreticular malignancy a/w HIV
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Non Hodgkin B cell lymphoma a/w EBV
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most frequent neoplasia in AIDS
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Kaposi sarcoma
a/w HHV 8 |
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Major cause of death secondary to Kaposi sarcoma
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GI obstrucion and hemorrhage
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