Some of these emails have been sent to people in Devon and Cornwall, causing inevitable distress and triggering calls to their GP or to hospitals.
NICE is advising people who have received the email - the subject line of which is important blood analysis result - to delete it without opening and not to click on any links. It is currently investigating the origins of the message.
Sir Andrew Dillon, NICE Chief Executive, said: “A spam email purporting to come from NICE is being sent to members of the public regarding cancer test results. This email is likely to cause distress to recipients since it advises that ‘test results' indicate they may have cancer. This malicious email is not from NICE and we are currently investigating its origin. We take this matter very seriously and have reported it to the police.”