[Spinal lymphosarcoma in a foal].

This research describes a case of rare spinal lymphosarcoma in a one-year-old foal, which caused paralysis in its hind legs. The disease was detected in a vertebra and nearby tissue, and also appeared in the spleen and certain lymph nodes, causing changes to the spinal cord as well.

Background

This paper presents the study of a rare case of spinal lymphosarcoma in a one-year-old foal. Lymphosarcoma is a type of cancer that arises from lymphocytes, a type of white blood cell. This disease typically affects older horses, making it particularly notable to find it in such a young horse. The disease has manifested in the foal’s spine, causing paralysis in its hind legs.

Findings

There are several key findings from the clinical and pathological study:

• The lymphosarcoma was located in the vertebral body and the adjacent epidural space of T 16.
• The disease also appeared in the spleen and the mesenterial lymph nodes of the foal.
• The spinal cord near the lymphosarcoma showed signs of “focal degenerative changes”. This included dilated myelin sheaths and swollen axons, indicating nerve damage and degeneration.
• A sparse number of macrophages, a type of cell that digests foreign substances and dead cells, were also discovered among the affected nerve cells.

Impact and Importance

The case of a spinal lymphosarcoma in a foal is both rare and severe. The disease is aggressive and hard to treat because it affects numerous organs, with the spleen and lymph nodes being particularly susceptible. In this instance, the disease caused paralysis in the foal’s hind legs, which significantly could impact its quality of life. Furthermore, the unusual occurrence of such a typically age-related disease in a very young subject represents an important contribution to the body of veterinary pathology knowledge about lymphosarcoma in horses.