Integumentary System Pathology 1 - Dermatology & ophthalmology Flashcards
What are the two major organisms that cause impetigo?
Staphylococcus aureus
Streptococcus pyogenes (group A, beta-hemolytic)
What type of toxin is responsible for the scalded skin syndrome of Staphylococcus aureus infection?
Exfoliatin
What organism is associated with hot tubs and can cause folliculitis?
Pseudomonas aeruginosa
What causes gas gangrene?
Clostridium perfringens
What organism causes most boils, carbuncles, and impetigo?
Staphylococcus aureus
What is the medical name for ringworm?
Tinea corporis
What are the different types of Tinea?
Tinea cruris (groin)
Tinea pedis (feet)
Tinea corporis (face, trunk, limbs)
Tinea capitis (scalp)
Tinea barbae (beard)
Tinea manuum (hands)
How are herpes simplex viruses (hsv) mainly transmitted?
Salivary or vesicle fluid contact, can be infected by asymptomatic shedding
What can cause a relapse of hsv?
Stress, hormonal fluctuations, environmental changes, illness, dietary factors
What are common locations for hsv-1 outbreaks?
Face, lips
Is the initial lesion of herpes painful or painless?
Painful
What are the most common tests for diagnosing hsv infection?
Cell culture, elisa or pcr testing
Downey cells or atypical lymphocytes are seen in infection with what virus?
EBV
What is the virus that causes chickenpox (varicella)?
Varicella-zoster virus (VZV)
Painful vesicles that emerge along a dermatome are associated with what disease?
Shingles (herpes zoster)
What is the incubation period for chicken-pox?
14-21 days