Botryomycosis

Synonym(s)

Granular bacteriosis; actinophytosis Definition

Chronic, purulent, bacterial infection with formation of granules

Pathogenesis

Most cases caused by Staphylococcus aureus; may represent suboptimal host response to bacterial organism

Clinical manifestation

Cutaneous or subcutaneous doughy nodules with ulcerations and draining sinuses; grainy material extruding from the lesions

Differential diagnosis

Mycetoma; actinomycosis; kerion; subcutaneous granuloma annulare; Kaposi's sarcoma; lymphoma

Therapy

Surgical therapy: debridement; surgical excision; laser vaporization

Medical therapy: dicloxacillin; cephalexin

References

Bonifaz A, Carrasco E (i996) Botryomycosis. International Journal of Dermatology 35(6):38i-388

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