Tuberculous pseudotumour of the liver developing during antituberculous chemotherapy.

A 29-year-old Chinese woman presented with a liver mass 2 months after initiation of chemotherapy for disseminated tuberculosis. A percutaneous liver biopsy revealed tuberculous pseudotumour. Although acid-fast bacilli were seen in the biopsy specimen, no organism could be cultured. No changes were made in the antituberculous chemotherapy, and the mass subsequently resolved. The patient was still well 18 months after presentation. To the authors' knowledge, the features of tuberculous pseudotumour seen with ultrasonography and computerized tomography have not previously been described, nor has this condition previously been reported in patients already receiving antituberculous chemotherapy.