Inflammatory pseudotumour of the liver.

Inflammatory pseudotumour is not a common lesion. The first series of 12 cases was described in 1986, to which 37 more cases have now been added. The histology, differential diagnosis, and prognosis of this lesion have been described in detail, but the aetiology is unknown and the mode of treatment remains controversial. A new case is presented and compared with the previously reported cases. Fine needle aspirate yielded a growth of klebsiella organisms. The possibility of this infection as an aetiological agent is considered.