Dogs may be key to sniffing out cancer

A skin specialist said dogs can be used to sniff out cancer.

In a new report entitled Sniffer Dogs In The Melanoma Clinic, Professor Howell Williams of the Queens Medical Centre in Nottingham claims a border collie sniffed out a cancerous mole on a patient's leg.

He said he diagnosed the skin cancer after the woman visited her GP when the dog tried to bite off the mole.