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28 Cards in this Set

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How do you treat osteomyelitis?
Culture to ID organism
Abx- parenterally then orally
Debridement and surgical drainage
What is the hallmark of chronic osteomyelitis?
The presence of infected dead bone, a sequestrum, that has separated from the living bone
What is miliary TB?
Extrapulmonary, when TB spreads from lung or lymph to the bones and joints
avascular osteonecrosis of the femoral head.
Legg-Calve-Perthes disease
disorder of the tibia that causes bowlegs
Blount's disease
What are some causes of osteonecrosis?
Disruption of blood supply
Thrombosis-Sickle cell
Vessel injury- vasculitis
Connective tissue- SLE, RA
Radiation
Corticosteroids
Most commonly affected joints in osteonecrosis?
Femoral head
Distal Femur
Proximal Humerus
What are the most common types of benign neoplasms
Osteoma
Chondroma
Osteochondroma
Giant Cell tumor
Most common organisms that causes septic arthritis
Staph aureus- most common

N.gonorrhea
Pseudomonas
Hep B
What are some organisms that cause Chronic Infective Arthritis
Nontuberculous mycobacteria
Tuberculosis
Fungi
Lyme disease
what is the treatment for erysipelas
Penicillin
What organisms cause erysipels
GABHS
Staph
What organisms cause cellutitis
GABHS
Staph aureus

Lower legs most commonly affected
What is pemphigus?
A blistering disease occurring on the skin and mucous membranes

Autoantibodies cause acantholysis(separation of epidermal cells from each other)
what are the signs and symptoms of pemphigus?
Relapsing crops of bullae
What is the hallmark of pemphigus?
Acantholysis
What is a faruncle?
A boil: abscess involving the entire hair follicle and adjacent subq tissue
What is a carbuncle?
Consists of several faruncles forming a mass with multiple drainage points
What is the treatment for faruncles and carbuncles?
Incision and drainage
Dicloxacillin or cephalexin
what organism causes faruncles?
Staphylococcus
MCC of erythema multiforme minor
Herpes simplex
MCC of erythema multiforme major(SJS)
Drugs: Sulfa, NSAIDS, phenytoin
Burning and itching after shaving suggest?
folliculitis
What organism causes "Hot tub folliculitis"?
Pseudomonas
This is an ulcerating lesion commonly due to pseudomonas and seen in neutropenic patients
Ecthyma gangrenosum
Rapidly expanding ulcers assoc. with inflammatory bowel disease
Pyoderma gangrenosum
What is porphyria?
affects the skin, causing photosensitivity, blisters, necrosis of the skin and gums, itching, and swelling

May cause discoloration of the urine after exposure to light
What is the treatment of pemphigus?
oral steroids