A Retrospective Cohort Study of Total Colonic Aganglionosis: Is the Appendix a Reliable Diagnostic Tool?

Authors

  • Thomas Joseph O'Hare Royal College of Surgeons Ireland, 123 St. Stephens Green, Dublin 2. Ireland
  • Michael McDermott Our Lady's Children's Hospital Crumlin, Dublin 12., Ireland
  • Maureen O'Sullivan Our Lady's Children's Hospital Crumlin, Dublin 12., Ireland
  • Pat Dicker Royal College of Surgeons Ireland
  • Brice Antao Our Lady's Children's Hospital Crumlin, Dublin 12., Ireland

DOI:

https://doi.org/10.21699/jns.v5i4.460

Keywords:

Total colonic aganglionosis, Hirschsprung’s disease, Appendix, Histology, Rectal suction biopsy

Abstract

Background: Hirschsprung’s disease (HD) is characterized by a lack of ganglion cells in the myenteric and submucosal plexus, associated with increased numbers of acetyl cholinesterase (AChE) positive nerve fibres. In approximately 10% of patients with HD the entire colon will be affected; a condition known as Total Colonic Aganglionosis (TCA). Aganglionosis of the appendix has long been considered to be an important finding in a patient in whom TCA is suspected, but its reliability for diagnosis has seldom been discussed. The aim of our study was to assess the reliability of the appendix as a histological specimen for the diagnosis of TCA, and to evaluate the long-term outcome of TCA.

Methods: A retrospective cohort study was performed of all pathological specimens of patients with confirmed HD in our institution between March 2006 and April 2016.

Results: Out of a total of 91 patients identified, 15 patients also had histopathological analysis of the appendix. Nine of these cases were confirmed as having TCA. The remaining 6 patients had HD involving the rest of the bowel up to the ascending colon, with normal ganglion present in the caecum. The appendix was removed in all the 15 cases. All 9 patients with confirmed TCA had aganglionosis of the appendix as well. The remaining 6 cases of short and long segment HD not involving the caecum, demonstrated normal ganglion cells within the appendix.

Conclusion: Aganglionosis of the appendix is a reliable tool in the diagnosis of TCA. The authors recommend that at the time of levelling biopsies, if aganglionosis extends to the mid-transverse colon, an ileostomy be performed and appendix sent for definitive confirmation of TCA. However, at the time of definitive surgery, a frozen section of pull-through segment of bowel is recommended to confirm the presence of ganglion cells.

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Author Biographies

Thomas Joseph O'Hare, Royal College of Surgeons Ireland, 123 St. Stephens Green, Dublin 2. Ireland

Surgical Registrar, Department of Surgery, Beacon Hospital Dublin 18, Ireland.

Formerly:

Paediatric surgical Senior House Officer, Department of Paediatric Surgery, Our Lady's Childrens Hospital Crumlin, Dublin 12., Ireland

Michael McDermott, Our Lady's Children's Hospital Crumlin, Dublin 12., Ireland

Consultant Paediatric Pathologist, Department of Histopathology, Our Lady's Children's Hospital Crumlin, Dublin 12. Ireland.

Maureen O'Sullivan, Our Lady's Children's Hospital Crumlin, Dublin 12., Ireland

Consultant Paediatric Pathologist, Department of Histopathology, Our Lady's Children's Hospital Crumlin, Dublin 12. Ireland.

Pat Dicker, Royal College of Surgeons Ireland

Statistician, School of Postgraduate Studies, Faculty of Medicine and Health Sciences, Royal College of Surgeons in Ireland, Dublin 2, Ireland.

Brice Antao, Our Lady's Children's Hospital Crumlin, Dublin 12., Ireland

Consultant Paediatric Surgeon, Department of Paediatric Surgery, Our Lady's Children's Hospital Crumlin, Dublin 12. Ireland.

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Published

2020-07-15

How to Cite

1.
O’Hare TJ, McDermott M, O’Sullivan M, Dicker P, Antao B. A Retrospective Cohort Study of Total Colonic Aganglionosis: Is the Appendix a Reliable Diagnostic Tool?. J Neonatal Surg [Internet]. 2020Jul.15 [cited 2021Dec.2];5(4):44. Available from: https://www.jneonatalsurg.com/ojs/index.php/jns/article/view/310