Recurrent esophageal obstruction due to squamous cell carcinoma in a horse.

This research paper discusses a case of recurrent esophageal obstruction in an 11 year old horse resulting from squamous cell carcinoma affecting the stomach. Surgical biopsy helped in making the definitive diagnosis.

Introduction

• The paper presents a case study of an 11-year-old Pinto gelding (a type of horse), which suffered from recurrent esophageal obstruction due to squamous cell carcinoma. Squamous cell carcinoma is a type of cancer that originates from squamous cells, which are found in the tissue forming the surface of the skin, lining of hollow organs, and passages of the respiratory and digestive tracts.

The Problem

• The horse was suffering from a squamous cell carcinoma in its pars esophagea, a region of the stomach. As a result, a tumour developed and enclosed the esophagus – the tube that carries food from the mouth to the stomach. This caused recurrent obstruction of the esophagus, creating severe health issues for the animal.

The Tumor and Its Attachments

• The tumor did not remain isolated in the esophagus; it spread and had connections to various other organs. It was attached to the diaphragm – the muscle that helps in respiration; spleen – a part of the immune system; aorta – the main and largest artery in the body; left adrenal gland – a hormone producing gland near the kidney; and the kidney itself.

Diagnosis

• The final diagnosis of squamous cell carcinoma causing the esophageal obstruction was confirmed through a surgical biopsy. This involved a standing left flank laparotomy, a surgical method in which an incision is made in the horse’s left flank to access the abdominal cavity and collect tissue from the mass for examination.

Importance of the Study

• This case study is relevant as it discusses a complex case of recurrent esophageal obstruction in a horse due to squamous cell carcinoma. It offers insights into diagnostic approaches like surgical biopsy for such medical conditions in the veterinary field.