title: Primary cutaneous actinomycosis:a case report.
abstract: Actinomycosis is a subacute or chronic suppurative bacterial infection caused by filamentous gram positive, anaerobic to microaerophilic non acid fast bacilli primarily of the genus Actinomyces that normally colonize the mouth, colon and vagina. Primary cutaneous actinomycosis is a rare entity and is generally associated with trauma. We report a case of primary cutaneous actinomycosis of the back and left axilla in a 32-year-old female patient with no suggestive history of trauma.The diagnosis was suggested by the characteristic lesions with multiple discharging sinuses draining sero-sanguinous fluid scattered all over the lesions. Gram positive bacilli with plenty of pus cells were demonstrated in the direct examination of the discharging pus. Diagnosis was confirmed by isolation of the organisms by anaerobic culture giving typical molar tooth colonies. Final confirmation was done by histopathological examination.
authors.affiliation: Associate Professor, Department of Microbiology, Murshidabad Medical College , Berhampore, West Bengal, India .
authors.forename: Mohua
authors.initials: M
authors.lastname: Bose
authors.affiliation: Associate Professor, Department of Microbiology, Nilratan Sircar Medical College , Kolkata, West Bengal, India .
authors.forename: Ranadeep
authors.initials: R
authors.lastname: Ghosh
authors.affiliation: Associate Professor, Department of Microbiology, Nilratan Sircar Medical College , Kolkata, West Bengal, India .
authors.forename: Kheya
authors.initials: K
authors.lastname: Mukherjee
authors.affiliation: PAssociate Professor, Department of Dermatology, Nilratan Sircar Medical College , Kolkata, West Bengal, India .
authors.forename: Loknath
authors.initials: L
authors.lastname: Ghoshal
keywords: Back; Discharging sinuses; Molar tooth colonies