The most informative of the cohort studies were consistent in giving limited evidence of an increased risk of cancer of the liver and biliary tract and a modestly elevated risk of non-Hodgkin’s lymphoma. [...] Specifically, the remit was to review the most recent 10-15 years of the literature, a period that in effect covers the time since the most recent expert evaluation of TCE’s cancer potential by a Working Group of the International Agency for Research on Cancer (IARC, 1995). [...] A brief overview of the knowledge database of TCE’s cancer potential (both in humans and laboratory animals) at the time of the IARC review was also included. [...] The most informative cohort studies consistently gave limited evidence of an increased (approximately two-fold) risk of cancer of the liver and biliary tract, and of a modest elevation (about 1.5-fold) in risk of non-Hodgkin’s lymphoma. [...] IRSST -. A review of selected literature (1995-2009) 3 on the carcinogenicity of trichloroethylene (TCE) To assist in interpretation of the more recent (1995-present) literature in the context of the earlier knowledge, it was also necessary to summarise the scientific understanding of TCE’s cancer potential as of 1995.