Irish Sarcoma Group

About ISG

The Irish Sarcoma Group is the association of specialist clinicians, nurses and supporting professionals who treat people with sarcoma on the island of Ireland.

The ISG was founded in 2014 and holds its annual meeting in November/December

The first patient-focused event was held in December 2015. This gave the general public, patients and their friends and family an opportunity to meet each other and the experts involved in managing this disease.

This website has been developed by Dr Charles Gillham co-founder of the Irish Sarcoma Group. Funding for this website was made available by the friends and family of the late Dara Byrne.

The aim of this website is to help inform the public about sarcoma. Health care professionals will also find some useful information here and guidelines for referral.

The aims of the Irish Sarcoma Group are:

  • To help develop and strengthen national sarcoma services
  • To raise awareness amongst the public and medical professionals about this rare group of diseases
  • To provide education, training and identification of best practice for all professionals treating people with sarcoma
  • To promote excellence in care and treatment of people with sarcoma through identification and sharing of best practice
  • To promote and support research and the development of more effective treatment and care

Irish Sarcoma Group Executive Committee

Dr Charles GillhamRadiation OncologyDublin

Charles Gillham
Charles Gillham is a Consultant Radiation Oncologist in the St Luke’s Radiation Oncology Network, Dublin. He graduated from University College London Medical School in 1994 and started his training in clinical oncology in 1998. It was during this, at what has now become the London Sarcoma Unit, that he developed a special interest in sarcomas.
Now, as the Irish lead for Soft Tissue Sarcomas he has co-founded the Irish Sarcoma Group. He instigated the annual meeting as the first step towards his vision of raising awareness and helping develop a service that parallels the best available internationally.
After attaining fellowship of the Royal College of Radiologists and completing his training he moved to Dublin in 2004 to undertake an MD at Trinity College. This was followed by a clinical fellowship at the University of Dresden, Germany.
Appointed a Consultant in October 2008 he works at St James’s (where he is clinical lead) and St. Luke’s Hospital but provides radiation oncology input to the St Vincent’s Sarcoma Multidisciplinary Meeting.
He was appointed an Examiner for the Faculty of Radiology, RCSI in 2012, is the Internal Examiner for the School of Radiation Therapy, Trinity College and is a lecturer on the annual ESTRO Treatment Planning Course.
He is a member of the British Sarcoma Group (BSG) and the Connective Tissue Oncology Society (CTOS).

Dr Jennifer GilmoreRadiation OncologyCork

Jennifer Gilmore


Dr Deirdre O’MahonyMedical OncologyCork

After being awarded her primary degree in Medicine from University College Cork (UCC) in 1995, Dr O’Mahony persued her career in Medical Oncology. She completed her Oncology training in Ireland while obtaining her Masters degree in Molecular Medicine at Trinity College, Dublin.
In the National Cancer Institute, Bethesda, MD USA, in 2003 Dr O’Mahony focused on clinical research when she commenced the NCI Medical Oncology fellowship programme with a subspecialty interests in lymphoid malignancies, viral oncogenesis and sarcoma. She continued as the Clinical Investigator with the HIV and AIDS Malignacy Branch until 2008 when she returned to Ireland to a medical oncology consultant post in St James Hospital. It was here she joined forces with Dr Charles Gillham to establish sarcoma treatment pathways for medical and radiation oncology.
In 2012, she moved to Cork where she is consultant medical oncologist in Cork University Hospital and Kerry General Hospital. She is a member of the Cancer Centre South soft tissue multidisciplinary team and chairperson of the Sarcoma MDT. She is Senior Clinical Lecturer at UCC.
She is an active member of the European Society of Medical Oncology (ESMO), American Society of Clinical Oncology (ASCO), American Society of Hematology, Connective Tissue Oncology Society (CTOS), and ICORG (the all-Ireland Co-operative Oncology Research Group).


Dr Jo BarryRadiologyCork

Mr Jim CloverPlastic SurgeryCork

Dr Cormac OwensPaediatric OncologyDublin

Cormac OwensDr Cormac Owens is a paediatric oncologist at Our Lady’s Children’s Hospital, Crumlin (OLCHC). He trained at OLCHC, Institut Gustave Roussy, Paris and the Hospital for Sick Children, Toronto.
Dr Owens is the national lead for paediatric sarcoma and neuroblastoma trials. He is the national PI in the European Paediatric soft Tissue Sarcoma Group (EpSSG) and EuroEWING consortium. He is the director of the early clinical trials programme at the national paediatric haematology/oncology unit in OLCHC. He is the clinical lead of the national paediatric haematology/oncology shared care programme.
His research interests are in clinical trial development, the development of novel therapies for children with cancer and chemotherapy standardisation.

Prof Maureen O’SullivanHistopathologyDublin

Dr Bill BennettHistopathologyDublin

Dr. Michael W. (Bill) Bennett is a Harvard trained surgical pathologist, board certified by the American Board of Pathology.
Dr. Bennett trained as resident, chief resident and fellow at Brigham and Women’s Hospital, Boston. Prof Christopher Fletcher, Professor of Pathology, Harvard University, and editor of the World Health Organisation classification of Tumours of Soft Tissue, was Dr Bennett’s officially appointed mentor during his five-year training period. Dr. Bennett completed a three-month surgical pathology fellowship with Prof. Fletcher. Dr. Bennett was appointed as an attending pathologist at Brigham and Women’s Hospital and Dana Farber Cancer Institute prior to returning to Ireland in 2007 to take up a consultant post with the National Cancer Screening Service. Dr. Bennett contributed significantly to the group which oversaw the creation of oncopathology services at Cancer Centre South/CUH. Dr. Bennett has a PhD in cancer biology and is a member of the Cancer Centre South soft tissue multidisciplinary team.


Dr Eric HeffernanRadiologyDublin

Eric HeffernanEric Heffernan is a musculoskeletal Radiologist with a special interest in soft tissue tumours, and practices at St Vincent’s University Hospital where he was appointed as a consultant in 2008.
He did his fellowship in musculoskeletal Radiology in Vancouver General Hospital, during which time he trained in the imaging work-up and biopsy of sarcoma patients, and was involved in weekly sarcoma MDT meetings at the British Columbia Cancer Agency.

Dr Heather McCarthyClinical OncologyBelfast

Dr Heather McCarthyDr McCarty completed her clinical oncology training in Belfast and then spend 6 months with the paediatric and sarcoma team in Birmingham before a further 2 year clinical fellowship in Princess Margaret Hospital, Toronto. In 2010 she returned to the UK to take up consultant post in Belfast. Since then she has sought to develop the regional sarcoma service building on the established orthopaedic led practise with greater integration of plastic surgical and retroperitoneal surgical teams. Her involvement with the paediatric oncology service has helped in development of the regional teenage and young adult service. Much progress has been made but there’s still some way to go to ensure her goal is met that every patient with ‘query sarcoma’ has timely access to appropriate care by informed professionals. Being involved in the Irish Sarcoma Group is a great opportunity to advance this and collaborate with colleagues across the country with a similar aim.

Mr Gary O’TooleSurgical OncologyDublin

Gary O'TooleConsultant Orthopaedic Surgeon & Senior Clinical Lecturer
St. Vincent’s University Hospital, Dublin
Cappagh National Orthopaedic Hospital, Dublin
Beacon Hospital Dublin
Gary O’Toole was appointed as a consultant orthopaedic surgeon to St Vincent’s University Hospital in 2004. He is a graduate of UCD (1996) and completed his Internship and basic surgical training in St Vincent’s University Hospital (1996-99).
His orthopaedic training was on the Irish Specialist Training Programme in Orthopaedic Surgery (1999-2004). He then completed two specialist fellowship training programmes. The first in adult hip and knee reconstruction in the Mater Hospital in Sydney, Australia; the second in orthopaedic oncology in Memorial Sloan Kettering Cancer Center in New York, USA. He has an interest in adult arthritis and also has a keen interest in musculoskeletal cancer (bone and soft tissue tumours). He has published in peer reviewed journals on orthopaedic oncology both primary and secondary tumours. He has a sub-specialist interest in soft tissue sarcomas.
Mr. O’Toole is actively involved in teaching and enjoys a position of Clinical Lecturer in the School of Medicine in UCD. He is a member of numerous academic societies. He has presented his work to the American Academy of Orthopaedic Surgeons, the British Orthopaedic Oncology Society and American Musculoskeletal Tumour Society.

Dr. Josephine BarryConsultant RadiologistCork

Gary O'TooleQualifications: MB, BCh, BAO, MRCP, DMRD, FRCR, FFRCSI, MBA

Medical Graduate: University College Cork

Postgraduate Radiology Training: Diagnostic Radiology training at Edinburgh Radiology Training Scheme, Scotland

Previous Consultant appointment: Consultant Radiologist, Forth Valley, Scotland

Current Consultant appointment: Consultant Radiologist Cork University Hospital

Special Interests: Oncology Imaging, Including Melanoma, Sarcoma, Thyroid Cancers , Gynaecology Imaging, Breast Imaging, Womens Imaging, Ultrasound, Nuclear Medicine including PET