ABSCESSES Flashcards
(10 cards)
1
Q
A
2
Q
Abscesses
A
Localized collection of pus caused by pyogenic organisms, mainly staphylococci (coagulase producers).
3
Q
Abscesses Routes of Infection
A
Direct access (wounds), local extension (e.g., infected tooth to jaw), lymphatic spread, blood spread (bacteremia/pyemia), or combined spread.
4
Q
Pathogenesis Zones of Abscesses
A
- Central necrosis (slough liquefaction).
- Intermediate granulation tissue (prevents spread).
- Peripheral acute inflammation (fades into healthy tissue).
5
Q
Fate of Abscesses
A
- Pointing and rupture (most common outcome).
- Chronicity (formation of fibrous tissue if not properly drained).
6
Q
Clinical Features
A
- Painful, red, edematous swelling.
- Enlarged tender lymph nodes.
- Systemic signs: fever, malaise, tachycardia, anorexia.
- Pus formation signs: Throbbing pain, hectic fever, pitting edema, localized inflammation, fluctuation, and leucocytosis.
7
Q
Treatment
A
- Primary: Incision and drainage (plus culture sensitivity test).
- Other: Ultrasound/CT-guided drainage for deep abscesses, antibiotics for severe or immunocompromised cases, drainage maintenance with rubber drain/gauze wick.
8
Q
Cellulitis: Definition
A
- Definition: Non-suppurative infection of connective tissue, mainly by streptococci or staphylococci.
9
Q
Cellulitis:Clinical Features
A
Red, hot, painful swelling with ill-defined margins, rapid spread, fever, lymphangitis (red streaks), and tender lymph nodes.
10
Q
Cellulitis:Treatment
A
- Treatment: Penicillin antibiotics, rest, elevation, warm compresses, and reassessment if no improvement in 48 hours.
