What he treats.
Bowel cancer is his core work, from diagnosis through to cancer that has spread. Cancer that has spread to a small number of places, from bowel or other primary cancers, is where MR-Linac SABR applies.
Bowel cancer
Bowel cancer, also called colorectal cancer, starts in the colon or the rectum. It is Dr Harinarayanan's core specialty. He is a consultant clinical oncologist at University Hospital Southampton, a core member of the regional bowel cancer multidisciplinary team, and he treats bowel cancer with radiotherapy, chemotherapy, immunotherapy and MR-Linac SABR, including cancer that has come back in the pelvis.
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Rectal cancer: keeping your bowel
For some people with rectal cancer, the standard operation removes the rectum and leaves a permanent stoma: an opening on the tummy where a bag collects waste. Organ preservation is a different approach. Radiotherapy, often with chemotherapy, is used to shrink the cancer, and if it disappears the operation may be avoided. Dr Harinarayanan was principal investigator for APHRODITE, a completed national trial of organ-preserving radiotherapy in rectal cancer. It is for suitable patients only, and he will tell you honestly whether you are one.
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Cancer that has spread to a few places
Oligometastatic means cancer that has spread from where it started to a small number of places, rather than widely. Oligo is an old word for few. It is treated differently from cancer that has spread widely: instead of drug treatment alone, each spot may be treated directly with precise, high-dose radiotherapy called SABR. Dr Harinarayanan has a special interest in oligometastatic disease and is accredited by GenesisCare UK to deliver MR-Linac SABR, the MRI-guided version.
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