Definition
The cutaneous abscess is a localized collection of pus in the skin. It is formed by entering bacteria in the affected area, generally saprophytes of the skin.
Cutaneous abscesses have the appearance of a sore swelling. In the beginning, the swelling is hardened and erythematous; later, the skin becomes thin, the abscess appears fluctuating and sometimes can drain spontaneously.
Possible conditions concomitant to the abscess include local cellulitis, lymphangitis, enlarged lymph nodes, fever and leukocytosis.
In the abscesses of the trunk, limbs, axillae, head and neck, the most frequently involved microorganisms are Staphylococcus aureus and streptococci. The abscesses of the inguinal, vaginal, gluteal and perirectal region, on the other hand, may contain microorganisms present in the faeces, usually anaerobes or an association of aerobes and anaerobes. Predisposing factors for the formation of a cutaneous abscess are past traumas (eg when a foreign body is present), immunodeficiency conditions and circulatory impairment.
Some small abscesses resolve without treatment. However, if the pain and swelling are significant the incision is often indicated, followed by drainage of the lesion. Antibiotics are usually not necessary unless the patient is immunocompromised and shows signs of a systemic infection.
Possible Causes * of skin abscess
- Infectious Cellulite
- whitlow
- melioidosis
- omphalitis
- Osteitis
- Osteomyelitis
