PopEater links to an item on Depeche Mode's "News" page:
Depeche Mode are pleased to announce they will restart their interrupted Tour Of The Universe in Leipzig, Germany on June 8th. On May 12th, lead singer Dave Gahan suffered a severe bout of gastroenteritis, leading to his hospitalization and the cancellation of the Athens concert. While in hospital, further medical tests revealed a low-grade malignant tumour in Dave's bladder, which has since been successfully removed. At doctors' orders Dave Gahan must take a break until June 8th, to ensure that he makes a full recovery. The Leipzig show on June 8th will be the first concert following Dave's recovery.
Dave Gahan sincerely thanks his fans for their support, understanding and patience. Depeche Mode deeply regret any problems or inconveniences the cancellations and postponements may have caused.
Gahan - and, for that matter, Gore and Fletcher - have all had eventful episodes during their music career, but it sounds like this interruption is a relatively minor one.