Cancer is now deemed to be a disability under the DDA 1995.
The CIPD, in association with Working with Cancer charity, has produced a superb booklet entitled 'Cancer and working: guidelines for employers, HR and line managers'.
It contains guidance on best practice for employers dealing with employees suffering from cancer, together with information on adjustments that can be made. This is a very worthwhile document for all employers, and for those litigating cases involving employees suffering from cancer.
Download the Guide here