Enlargement of Esophagus in Ferrets
Megaesophagus in Ferrets
Rather than a single disease entity, megaesophagus refers to dilation and slow movement of the esophagus, a muscular tube connecting the throat to the stomach. This may be a primary disorder or secondary to esophageal obstruction or neuromuscular dysfunction. If esophageal motility is decreased or absent, it can result in severe complications, including starvation and aspiration pneumonia. Megaesophagus is usually seen in adult ferrets (3-7 years old), implying that the disease is acquired.
Symptoms and Types
Regurgitation is considered the hallmark sign of megaesophagus. Also, aspiration pneumonia may develop due to the entrance of food or liquid into the lungs. Other common symptoms include:
The acquired form of megaesphagus is commonly idiopathic (of unknown origin), but may be due to:
Your veterinarian will first ask you for a thorough history of your ferret’s health. He or she will then perform a complete physical examination on your dog and attempt to differentiate, with your description, whether it is regurgitating or vomiting, which is important in ruling out underlying diseases that cause vomiting. The shape of expelled material, presence of undigested food, and length of time from ingestion to vomiting (or regurgitation) will also help differentiate between these two issues.
Routine laboratory tests, including complete blood count (CBC) and urinalysis, which are usually normal in dogs with megaesophagus. However, abnormalities related to underlying diseases or complications, like aspiration pneumonia, may be seen. Radiographic studies will show the enlarged esophagus filled with fluid, air, or food, and will help identify abnormalities related to aspiration pneumonia.
More advanced techniques, like endoscopy and biopsies may also be employed to confirm a diagnosis of megaesophagus.
The return of food into the oral cavity after it has been swallowed
A band of tissue that makes a passage narrower
An in-depth examination of the properties of urine; used to determine the presence or absence of illness
The area found between the muscles and the endings of the nerves
The term for an esophagus that is enlarged abnormally
The tube that extends from the mouth to the stomach
Relating to a disease of unknown origin, which may or may not have arisen spontaneously
The widening of something
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