Chapter 10 - Vesicles & Bullae Flashcards
Solid and palpable lesions are ________ lesions.
primary
what are the 4 types of solid and palpable lesions?
papule, nodule, plaque, cyst, wheal
Fluid filled lesions are _____ lesions.
primary
what are the 3 types of fluid filled lesions?
vesicle, bulla, pustule
open lesions are _____ lesions.
primary
what are the 3 types of open lesions?
erosion, ulcer, fissure
Atrophy, Scar, & telangiectasia are _____ lesions.
primary
What occur as a result of a change in the primary lesions?
secondary lesions
What are the 4 secondary lesions?
scale, crust, lichenification, verrucous
A primary fluid filled lesion greater than 1 cm?
Bullae
an intraepidermal (subcorneal) bacterial infection of the skin caused by certain strains of Staphlcoccus aureus.
Bullous impetigo
a contageious bacterial skin infection forming pustules and yellow,, crusty sores
impetigo
Where is Bullous impetigo most frequently found?
preschool age children
What are the predisposing factors of impetigo?
crowding, poor hygiene, chronic dermatitis, and neglected injury of the skin
When performing a physical examination of bollous impetigo (not ruptured yet), what would you expect to see?
fragile, cear or cloudy bullae. (blister containing fluid)
What would you expect to see if the bullae was ruptured?
a thin varnish-like crust. A delicate, collarette-like remnant of the blister roof is often present at the rim of the crust.
A patient has self infected (autoinoculation) herself with bollous impetigo. What would you expect to see during her physical examination?
secondary (satellite) lesions
What part of the body are most often affected by bollous impetigo?
face, neck, and extremities
t/f Patients diagnosed with bollous impetigo may have regional adenopathy and systemic symptoms.
false. regional adenopathy may be present as a symptom…. but systemic symptoms will NOT occur.
You suspect your patient has bullous impetigo. You must perform a differential diagnosis to be sure. What three other diseases are similar?
- Contact Dermatitis
- Herpes simplex virus HSV
- superficial fungal infections
A patient presenting with chronic, apparently impetignized, plaques that have not responded appropriate to antibiotics would be suspected to have _________.
pemphigus vulgaris
What disease is primarily found in infants and is characterized by sudden onset of fever, skin tenderness, erythema, followed by formation of large, flaccid bullae and shedding of large sheets of skin.
Staphylococcal scalded skin syndrome
What is the difference in Bullae of staphylococcal scalded skin syndrome and bollous impetigo?
s. auras can be recovered in bollous impetigo but in staphylococcal scalded skin syndrome the bullae are sterile.
What is the usual source of infection in staphylococcal scalded skin syndrome?
conjunctiva, nose, or pharynx; or in a newborn an infected umbilical stump