Ulcers Or Necrotic Lesions Flashcards
Sporotrichosis cause and sx
Rose growers
Sporothrix schenckii
Painless papule that slowly enlarges and ulcerates
Along lymphatic vessels
Nocardiosis cause and sx
Nocardia asteroides or brasiliensis
Spores from soil
Cellulitis, pustules, abscesses, ulcers, mycetoma
Actinomycosis cause and sx
Actinomyces israelii or Propionibacterium sp.
Jaw, thorax, or abd
Indurated area of multiple small abscesses
Anthrax cause and sx
Bacillus anthracis
Eschar
Cutaneous diphtheria cause and sx
Corynebacterium diphtheriae
Shallow ulcer with firm border
May have Eschar
Extremities and face
Brown recluse bites cause and sx
Loxosceles
Necrotic ulcer with red halo around blanched skin
Ecthyma gangrenosum cause and sx
P. aeruginosa
Purple/black ulcerated center with surrounding erythema about 1 cm
Axillary and anogenital skin
Fever
Tularemia cause and sx
Francisella tularensis from rabbits
Brucella abortus titer
Ulcerated nodule with regional lymphadenopathy
Plague cause and sx
Yersinia pestis from fleas on rodents Macules Erythema Petechia or ecchymosis May ulcerate Buboes Painful enlarged lymph nodes
Buruli ulcer cause and sx
Mycobacterium ulcerans
Deep, expansive, painless ulceration
Africa, SE Asia, Australia, Mexico
Water
Leishmaniasis cause and sx
L. tropica, braziliensis, or mexicana
Middle East, C. America
Starts as red papule, Slowly developing ulcer, red raised border
Ears = cutaneous = chiclero ulcer = mexicana
mouth or nose = mucocutaneous = espundia = braziliensis
Lymphogranuloma venereum cause and sx
Chlamydia trachomatis L1-3
Tropics
Small painless genital vesicles
Lymphadenitis
Primary syphilis cause and sx
Treponema pallidum
Indurated painless genital chancre
Smooth base and raised border
Chancroid cause and sx
Haemophilus ducreyi
Painful shallow ragged genital ulcer that bleeds easily
Not indurated
Papule to pustule to ulcer
Granuloma inguinale cause and sx
Klebsiella granulomatis
Nodule that turns to painless genital ulcer with sharply defined overhanging edge
Donovan bodies
