Mr Alfredo Tonsi

Consultant General and Colorectal Surgeon


Specialises in

  • Colorectal surgery
  • Gallbladder surgery
  • Hernia surgery
  • IBD

Languages spoken


I am a Consultant General and Colorectal Surgeon at The Royal Sussex County Hospital, and an expert on surgical treatment of inflammatory bowel disease and rectal cancer.

I have performed over 4,000 general and colorectal surgical procedures including laparoscopic right hemicolectomy, laparoscopic anterior resection, complex anal fistulae repair, and abdominal wall hernias. I am also national trainer on colonoscopy accredited by the JAG Endoscopy Training System.

During my training I embarked a scientific collaboration with the Hepatobiliary Department of University of Verona, Italy which led to a PhD awarded in 2012. Publications from the thesis include association of familial adenomatous polyposis (FAP) and primary duodenal cancer.

I have been trained in advanced minimally invasive surgery during my Higher Surgical Training in London and South West Thames region which I completed in 2015. Subsequently, I had further specialist training in complex anal fistula and inflammatory bowel surgery at St Mark’s Hospital, St George's and St Thomas Hospital in London, where I gained extensive experience in minimally invasive surgery for low rectal cancer, pouch surgery, complex fistula repair and deep endometriosis.

As colorectal surgeon, I was part of the Royal Derby Endometriosis Centre team which achieved the status of accredited unit from the British Society for Gynaecological Endoscopy in 2021. I am also member of the European Endometriosis League.

I am the Surgical IBD lead at Royal County Sussex Hospital where I work in close contact with the IBD dietitian team and gastroenterology colleagues in order to optimise Crohn’s patients prior to their surgery.

I am an Honorary Senior Lecture at the Brighton and Sussex Medical School.

At present I am enrolled on an online course to achieve a Diploma in Football Medicine supported by FIFA medical network.


General Medical Council Number: C6050147

Treatment information

Some of the principal treatments carried out by Mr Alfredo Tonsi at Spire include:

Colorectal surgery

General surgery

Other treatments

  • Laparoscopic surgery
  • Removal of malignant skin lesions

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Important information about Covid-19 tests

COVID-19 testing or antibody tests are not available as a standalone service at The Montefiore Hospital.


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Additional information

Colorectal surgery
Gallstone surgery
General surgery
Hernia repair surgery
Laparoscopic surgery

MD / University of Veron / 2000
Doctor of Medicine
MD is a degree given to physicians at the basis of their training. FRCS is degree given to surgeons.

Professional memberships

General Medical Council (GMC)

Association of Coloproctology of Great Britain and Ireland (ACPGBI)

European Society of Coloproctology (ESCP)

The Confederation of British Surgery

The Medical Defence Union

Professional leadership

Surgical Lead for Inflammatory Bowel Disease at Royal County Sussex Hospital


Caecal volvulus following left-side laparoscopic retroperitoneal nephroureterectomy. Abdoolraheem MY, Quraishi MK, Tonsi A, Henderson A BMJ Case Rep. 2019 Jul 4;12(7).

Postoperative morbidity is an additional prognostic factor after potentially curative resection of primary duodenal adenocarcinoma. Malleo G, Tonsi A Marcheggiani G, Casarotto A, Paiella S, Butturini G. Salvia R, Bassi C.

Consultant General and Colorectal Surgeon, University Hospitals Sussex NHS Foundation Trust

Surgical Lead for Inflammatory Bowel Disease, Royal County Sussex Hospital

My personal interests include football, long walks and cycling over the South Downs, Opera and classical ballet. As season ticket holder, I enjoy to go to the Amex Stadium with my teenage son watching Brighton and Hove Albion playing in Premier League, and I also love social summer evenings listening to the Opera as member of the Grange Park Opera in Surrey.

Telephone 01273 828 148
Private secretary Romina Membrini
Private secretary email