UCL Queen Square Institute of Neurology


The Team

Here you will find more information on our team.

This highly specialised multi-disciplined team includes three dedicated surgeons for pituitary adenomas and related benign skull base pathologies; and two dedicated surgeons for chordomas, chondrosarcomas, and other malignant skull base pathologies. They work alongside endocrinologists, ophthalmologists, pathologists, radiologists, oncologists, and specialist nurses. All supported by the advanced resources of the National Hospital for Neurology and Neurosurgery and linked with multiple specialist endocrine and ophthalmic units in London and across the country and beyond.



Surgeons specialising in pituitary adenoma and related benign skull base pathologies:

Mr Neil DorwardConsultant Neurosurgeon and Honorary Senior Lecturer ​​​​
  • Clinical Lead for Pituitary and Endoscopic surgery
  • Transferred to fully endoscopic pituitary surgery 2007 and has been at the forefront of developing extended endoscopic skull base surgery ever since
  • Is the lead trainer of endoscopic transsphenoidal techniques and lead supervisor for the RCS Senior Surgical Fellowship in Pituitary Surgery at NHNN
  • Inaugural President of the British Neuro-Endoscopy Society

‘He was excellent and extremely efficient. I would not be here today without him. I first saw him on Friday and had my operation the following Monday.’ – Patient 

‘Mr. Dorward is an outstanding medic. He is professional and his experience calms a patient down from any anxiety or worry. He performed a pituitary tumour for me and his op, his post op daily visits and follow up over the years showed superb diligence and professionalism and as he coordinated with other case related specialities.’ – Patient 

‘I was extremely impressed by the professionalism of Mr Neil Dorward from the point of diagnosis, clarity of explanation of my procedure for surgery (on a tumour compressing my optic nerve), the surgery itself, which went smoothly and the after care. He helped alleviate a lot of the fear I had about the surgery and is backed up by a superb team.’ – Patient 

Mr Hani MarcusConsultant Neurosurgeon and Honorary Associate Professor
  • Research Lead for Pituitary and Endoscopic surgery
  • Deputy director for Translation at the Wellcome / EPSRC Centre for Interventional and Surgical Sciences
  • Lead for Neurosurgery and Brain Cancer for the North Thames research network as part of the National Institute for Health Research
  • Young Neurosurgeon Award by the World Federation of Neurosurgical Societies
  • Hunterian Professorship by the Royal College of surgeons of England
  • His work has received over £2.5 million in funding, has resulted in over 150 peer-reviewed publications

‘I was referred to Mr Hani Marcus following an MRI scan which showed that I had a large pituitary brain tumour. He is an outstanding surgeon at the top of his profession, is very safety conscious and passionate about his work… I felt the care I received from Mr Marcus and his team was excellent and highly recommend him.’ – Patient 

‘The fact I am doing so well today is complete testament to the skill, care, and dedication of Mr Marcus. Mr Marcus gave up his day off to do my emergency operation and myself and my family are indebted to him and have nothing but praise for him and his team. My family were always updated with personal phone calls from Mr Marcus, so they knew exactly what was happening and he was always happy to answer questions. At all times I felt confident that I was in safe hands.’ – Patient 

‘…I underwent an endoscopic transsphenoidal excision of a cystic pituitary adenoma. I still find it hard to believe that I had brain surgery; looking at me, nobody would have known that I had had anything done. Incredible! Amazing! Wonderful! …Thanks to the skill and expertise of Mr Marcus and his team, my growth hormone levels are now normal and my future health prospects are much enhanced. As a bonus, I’m delighted to find that my nose, which had become enlarged, has returned to its former size (who needs cosmetic surgery when you can have brain surgery?!) …’ – Patient

Ms Anouk BorgConsultant Neurosurgeon
  • Completed neurosurgery training at NHNN, followed by both the Pituitary Fellowship and Skull base Fellowship in Oxford
  • Has an MD in clinical research and was the Quality improvement fellow with UCL Partners
  • Is passionate about teaching and training and is keen to use her leadership experience in organising innovative courses for junior trainees

Excellent, professional, caring. Approachable. Very informative and explained procedure and risks so that an informed decision could be made with all the facts. Also allowed questions to be asked and answered. Allowed time for consultation. Not rushed. So relaxed and not stressful consultation. Dealt with as a person. Also felt that if I had any further questions I could contact and ask advice.’ – Patient

Surgeons specialising in chordomas, chondrosarcomas and related malignant skull base pathologies:

Prof David ChoiConsultant Neurosurgeon and Professor of Neurosurgery
  • Graduated with a first-class degree in medical sciences from Emmanuel College, Cambridge, and went on to complete clinical medicine at Edinburgh University, basic surgical training at the Glasgow Royal Infirmary, and started neurosurgical training at the Glasgow Institute of Neurological Sciences
  • Obtained a PhD in neuroregeneration at the National Institute for Medical Research, London, and completed higher surgical training in neurosurgery at Atkinson Morley's Hospital, London, and the NHNN
  • Appointed as a consultant in neurosurgery in 2005 and is presently professor of neurosurgery

‘Prof Choi took the time to understand my concerns and explain clearly the options, his recommendations and reasons behind. I felt that he listened to my concerns as consequently am happy that we made informed decisions and ultimately the right outcome’ – Patient 

‘Prof Choi was very professional didn’t talk me into having an operation until I was ready to go ahead and then said he thought it would definitely help.’ – Patient

‘Professor Choi is an amazing surgeon’ – Patient

Mr Peter AndrewsConsultant Rhinologist and Honorary Associate Professor
  • Clinical Director of ENT surgery at The Royal National ENT and Eastman Dental Hospitals, Chairman of the North Central London (NCL) ENT network and ENT Clinical Lead for the NHSE/GIRFT elective recovery programme
  • Current President of the British Society of Facial Plastic Surgery and President Elect of the Rhinology Section of the Royal Society of Medicine
  • Research Lead for Rhinology
  • Has published over 70 peer-reviewed publications and runs an olfactory and rhinology PhD programme at the EAR Institute



Prof Stephanie BaldewegConsultant Endocrinologist, UCLH
  • Clinical Lead for Diabetes and Endocrinology
  • Leads the organising committee for the National Pituitary Conference held annually at the Royal College of Physicians in London
  • Training programme director for Diabetes and Endocrinology in London for many years, worked as Associate Director for Higher Specialty Training for 16 medical specialties at UCL Partners, and then as Associate Academic Dean at Health Education England
  • Trustee and Vice Chair of the Medical committee of The Pituitary Foundation
  • Chair of the Clinical Committee of the Society for Endocrinology

‘Prof Baldeweg has been an absolutely inspirational Chair of our Clinical Committee and what the committee has achieved under her leadership has been simply stunning – especially considering the hugely challenging circumstances we have faced over the past years. Prof Baldeweg more than anyone saw the opportunities afforded during the pandemic and helped us all to embrace and deliver those opportunities.  The Future of Endocrinology work – which was her vision and which she expertly oversaw – will continue to be hugely influential but Prof Baldeweg has achieved so much more and the Society and all of our stakeholders owe her a huge debt of gratitude.’ - Ian Russell, CEO Society for Endocrinology, Nov 2022

‘Professor Baldeweg has made a significant contribution to The Pituitary Foundation for more than a decade. She is an Ambassador and a great champion of our work at all times, particularly amongst her peers and colleagues in the endocrine community, encouraging others to work with, value and support, patient groups like ours. She has led many important initiatives to improve patient care within the NHS and champion of the patient voice and patient involvement, no more so than during COVID-19. I’ve known Professor Baldeweg for over 10 years through my role in The Pituitary Foundation. She is experienced, down-to-earth, caring and approachable – traits that our community of patients and staff here, much appreciate. She contributes a great deal as a volunteer.’ - Menai Owen Jones, CEO, The Pituitary Foundation, March 2021 

An excellent listener - always considers my point of view (even if she does not always agree) and tailors treatment which takes this into account, whilst still being in my best interests, clinically’ – Feedback from patient as part of annual appraisal

Prof Pierre BoulouxConsultant Endocrinologist, UCLH and Royal Free Hospital
  • Special interest is neuroendocrinology and gonadal function
  • Has published over 200 peer reviewed articles, over 150 chapters and reviews, and 5 textbooks of Endocrinology and General medicine
  • Has supervised 14 PhD, and 3 MD students

Prof Will Drake, Consultant Endocrinologist, St Bartholomew's Hospital

Prof Marta Korbonits, Consultant Endocrinologist, St Bartholomew's Hospital

Prof Maralyn Druce, Consultant Endocrinologist, St Bartholomew's Hospital

Prof Ketan Dhatariya, Consultant Endocrinologist, Norfolk and Norwich University Hospital

Dr Teng-Teng Chung, Consultant Endocrinologist, UCLH

Dr Sophie Clarke, Consultant Endocrinologist, UCLH

Dr Helen Simpson, Consultant Endocrinologist, UCLH

Dr Umasuthan Srirangalingam, Consultant Endocrinologist, UCLH

Dr Sabina Russell, Consultant Endocrinologist, UCLH and Royal Free Hospital

Dr Mark Cohen, Consultant Endocrinologist, Barnet and Royal Free Hospital

Dr Jonathan Katz, Consultant Endocrinologist, Barnet and Royal Free Hospital

Dr Dipesh Patel, Consultant Endocrinologist, Barnet and Royal Free Hospital

Dr Scott Akker, Consultant Endocrinologist, St Bartholomew's Hospital

Dr Dominic Calvan, Consultant Endocrinologist, St Bartholomew's Hospital

Dr Zoe Davies, Consultant Endocrinologist, St Bartholomew's Hospital and Whipp’s Cross Hospital (Lead)

Dr Nigel Glynn, Consultant Endocrinologist, St Bartholomew's Hospital

Dr Candy Sze, Consultant Endocrinologist, St Bartholomew's Hospital

Dr Mona Waterhouse, Consultant Endocrinologist, St Bartholomew's Hospital

Dr Antonia Brooke, Consultant Endocrinologist, Royal Devon and Exeter Hospital

Dr Chantal Kong, Consultant Endocrinologist, Hemel Hempstead General and St Albans City Hospitals

Dr Thomas Galliford, Consultant Endocrinologist, Hemel Hempstead General and St Albans City Hospitals

Dr Julia Ostberg, Watford General Hospital

Dr Paul Lambert, Consultant Endocrinologist, Somerset Foundation NHS Trust

Dr Julia Thomas, Consultant Endocrinologist, Somerset Foundation NHS Trust

Dr Chidambaram Nethaji, Consultant Endocrinologist, North Middlesex Hospital

Dr Anukul Garg, Consultant Endocrinologist, North Middlesex Hospital

Dr Ravi Menon, Consultant Endocrinologist, North Middlesex Hospital

Dr Girish Rayanagoudar, Consultant Endocrinologist, North Middlesex Hospital

Dr Rupa Ahluwalia, Consultant Endocrinologist, Norfolk and Norwich University Hospital

Dr Francesca Swords, Consultant Endocrinologist, Norfolk and Norwich University Hospital

Dr Mahesh Deore, Consultant Endocrinologist, Northwick Park Hospital

Dr Asjid Qureshi, Consultant Endocrinologist, Northwick Park Hospital

Dr Ian Seetho, Consultant Endocrinologist, Northwick Park Hospital

Dr Mushtaqur Rahman, Consultant Endocrinologist, Northwick Park Hospital

Dr Maria Barnard, Consultant Endocrinologist, Whittington Hospital

Dr Deepa Chandran, Consultant Endocrinologist, Whittington Hospital

Dr Shona Jacobson, Consultant Endocrinologist, Whittington Hospital

Dr Michela Rossi, Consultant Endocrinologist, Whittington Hospital

Dr Artemis Vogazianou, Consultant Endocrinologist, Whittington Hospital

Dr Julian Waung, Consultant Endocrinologist, Whittington Hospital

Dr Mark Gruppetta, Consultant Endocrinologist, Mater Dei Hospital Malta



Prof Ahmed Toosy, Consultant Neuro-Ophthalmologist, UCLH and Moorfields Eye Hospital

Mr James Acheson, Consultant Neuro-Ophthalmologist, UCLH and Moorfields Eye Hospital

Mr Fion Bremner, Consultant Neuro-Ophthalmologist, UCLH

Dr Axel Petzold, Consultant Neuro-Ophthalmologist, UCLH and Moorfields Eye Hospital

Dr Ailbhe Burke, Consultant Neuro-Ophthalmologist, Royal Free Hospital and Moorfields Eye Hospital

Mr Emanuel de Carvalho, Consultant Neuro-Ophthalmologist, Moorfields Eye Hospital

Dr Sui Wong, Consultant Neuro-Ophthalmologist, Moorfields Eye Hospital and Guys' and St. Thomas' NHS Trust



Dr Indran Davagnanam, Consultant Neuroradiologist, UCLH and Moorfields Eye Hospital

Dr Katherine Miszkiel, Consultant Neuroradiologist, UCLH and Moorfields Eye Hospital

Dr Adam Kenji Yamamoto, Consultant Neuroradiologist, UCLH



Dr Zane Jaunmuktane, Consultant Neuropathologist, UCLH


Clinical Oncology

Dr Naomi Fersht, Consultant Neuro-oncologist, UCLH

Dr Michael Kosmin, Consultant Neuro-oncologist, UCLH


Specialist Nurses

Glenda Jimenez

Sylvia Michael

Inma Serrano

Emilyn Sanchez

Roger Tirador



Dan Wood


We also provide support to surgeons caring for paediatric patients with pituitary adenoma and related diseases at Great Ormond Street Hospital for Children (GOSH).

Paediatric neurosurgery

Kristian Aquilina, Consultant Neurosurgeon, GOSH

Owase Jeelani, Consultant Neurosurgeon, GOSH