Nurses met the queen when she opened a new state-of-the-art cancer treatment centre earlier this week.
The Queen was shown around the hospital by matron, Amanda Hallums. During their hour long visit, the royal party also met clinicians, experts, staff and patients currently being treated at the new cancer centre.
The clinic, which cost £80m and welcomed its first patients in December, has a holistic approach to cancer care, combining it with the newest technology.
The eight-storey building in Marylebone, central London, has 47 individual bedrooms and 22 day care pods, for patients receiving chemotherapy and transfusions.
Those in the rooms have control of their surroundings including temperature, lighting, entertainment and angle of their bed in a bid to help relaxation.
The royal couple met staff in the radiotherapy department and viewed a “CyberKnife” - a robotic system that targets cancerous and benign tumours with high-dose beams of radiation.
Speaking at the event Malcolm Miller, Chief Executive of The London Clinic said: “This has been a very special day in the history of the Clinic and we are extremely proud and privileged that Her Majesty has visited our new cancer hospital and has had the opportunity to meet some of our staff, consultant oncologists and patients who are currently being treated here.
“The official opening marks the dawn of a new era in cancer treatment and care. We believe our new facilities, equipment and team of experts will provide renewed hope and optimism for cancer patients and their families and will help put the UK back on the cancer map.”