C-cell tumours of the thyroid in the horse.
The clinical and pathological aspects of two cases of C-cell (parafollicular cell) tumours of the thyroid are described. Both the horse and the pony presented with a paralaryngeal mass and a history of constant gulping. Ultrastructural examination of the tumours demonstrated that they were composed of C-cells containing typical, membrane-bound secretory granules. The pony is alive and well three years after surgery and the horse has raced successfully following removal of the tumour.
D000818:Animals; D002417:Cattle; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D004285:Dogs; D006734:Horse Diseases / Q000473:pathology* / Q000601:surgery; D006736:Horses; D006801:Humans; D008297:Male; D051381:Rats; D013964:Thyroid Neoplasms / Q000473:pathology / Q000601:surgery / Q000648:ultrastructure / Q000662:veterinary*