Abstract
Two cases of orbital tuberculosis in white Canadians are reported. The two patients did not suffer from pulmonary tuberculosis, the orbital disease was associated with tuberculous sinusitis in the first case and blood-borne from constrictive tuberculous pericarditis in the second case. Acid-fast bacilli are difficult to detect in the pathological specimens and the diagnosis is usually based on the following: (1) the positive tuberculin skin test; (2) the caseating granulomatous inflammatory lesion on histopathology, which is highly suggestive of active tuberculosis; (3) the positive culture for Mycobacterium tuberculosis if the specimens are obtained early in the course of the disease; and (4) the complete resolution of the disease with the specific antituberculous medications.
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