title: Detection of Mycobacterium tuberculosis by polymerase chain reaction in a case of orbital tuberculosis.
abstract: Orbital tuberculosis is quite uncommon. We report a case of orbital tuberculosis in a 3-year-old child from Bangladesh who presented with swelling and discharging sinus in the lower part of the orbit. Histopathology revealed a granulomatous inflammation with caseation necrosis. Polymerase chain reaction (PCR) showed amplification of the Mycobacterium tuberculosis genome. The patient responded to a course of antituberculous treatment. Mycobacterium tuberculosis should be considered in the differential diagnosis of inflammatory orbital disease in the Indian subcontinent where tuberculosis is prevalent.
authors.affiliation: Medical and Vision Research Foundation, Chennai, India
authors.forename: Jyotirmay
authors.initials: J
authors.lastname: Biswas
authors.forename: Bani
authors.initials: B
authors.lastname: Roy Chowdhury
authors.forename: S
authors.initials: S
authors.lastname: Krishna Kumar
authors.forename: K
authors.initials: K
authors.lastname: Lily Therese
authors.forename: H N.
authors.initials: HN
authors.lastname: Madhavan