ACTINOMYCOSIS OF SKIN

GENERAL:

It is a chronic suppurative disease caused by anaerobic bacteria, ACTINOMYCETES ISRAELII.The organisms are commensals in the Oral cavity, Alimentary tract, and vagina.

The infection is always endogenous in origin and not person-to-person.

TYPES:

depending on the location,it is of 4 types;

• CERVICOFACIAL  ACTINOMYCOSIS: (commonest form)infection enters from tonsils, carious teeth, periodontal disease, or trauma.Initially there is Lumpy Jaw (firm swelling in the lower jaw).Later the mass breaks down and abscesses & sinuses are formed.Discharging  pus contains Typical Tiny Sulphur Granules.
• THORACIC ACTINOMYCOSIS: Due to aspiration of organisms from oral cavity or extension of infection from abdominal or hepatic lesions the infection occurs in LUNGS.
• ABDOMINAL ACTINOMYCOSIS: Results from swallowing of organisms from oral cavity or extension from thoracic cavity. Common in Appendix, Caecum & Liver.
• PELVIC ACTINOMYCOSIS: occurs as a complication of Intrauterine contraceptive devices.

GROSSLY:  ACTINOMYCOSIS SKIN.

There is firm swelling in the region of skin ,sinuses and abscesses are formed.Pus contains characteristic Yellow Sulphur Granules.These sinuses extend in to underlying tissues as well.

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