Keith C. Fay is a Hematologist-Oncologist based at St Vincent's Hospital in Darlinghurst, NSW, Australia. He works with people who have health issues that sit across the blood and the immune system, as well as related complications that can affect other parts of the body.
In many cases, Keith looks after adults with blood cancers such as leukaemias and lymphomas. This can include conditions like chronic lymphocytic leukaemia (CLL), chronic B-cell leukaemia (CBCL), and non-Hodgkin lymphoma types such as follicular lymphoma and diffuse large B-cell lymphoma (DLBCL). He also helps manage patients with more complex immune problems, including common variable immune deficiency and hypereosinophilic conditions.
Keith’s work can also involve treatment planning around bone marrow transplant care. After transplant, some patients may develop graft-versus-host disease (GvHD), and that’s a big focus in the follow-up and ongoing support needed. He’s also involved in caring for people with issues linked to infections and complications, including cytomegalic inclusion disease, where careful monitoring matters.
Not every case is only about blood. At times, he supports patients with long-term gut and nerve conditions that can be hard to explain and harder to treat. This includes things like intestinal pseudo-obstruction and short bowel syndrome, as well as rare muscle and nerve problems such as sensorimotor polyneuropathy. Some patients also have metabolic or mitochondrial conditions, including MELAS syndrome, where treatment needs to fit the whole picture.
Over time, Keith’s experience comes from looking after a wide range of serious, ongoing conditions. He works as part of a hospital team, so care is usually coordinated with other specialists, nurses, and allied health staff. That teamwork is especially important when a case is complicated or changing quickly.
When it comes to education, Keith’s foundation is in hospital-based medical training, with ongoing learning through clinical practice and continuing professional development. He stays up to date with new approaches, because in haematology and oncology, things move along.
Clinical trials can be relevant for some patients, depending on the diagnosis and stage of illness. In those situations, Keith and the care team help consider whether trial options are worth discussing, alongside standard treatment and the patient’s own goals.
Keith also looks after patients with skin cancers, including squamous cell skin carcinoma, linking cancer care back to the overall health plan.
