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Medical Conditions

  • Laryngeal paralysis is a condition that causes dysfunction of the larynx causing reduced ability to breathe deeply and can obstruct the airway. It can be a congenital condition of young dogs or may be due to a neuromuscular disease in older dogs. Clinical signs include coughing, noisy breathing, and exercise intolerance. A definitive diagnosis is made through an examination of the larynx with an endoscope or laryngoscope. Treatment of mild cases involves environmental management to reduce any stress on the larynx and medications used for flareups. More severe or congenital cases require surgery.

  • Leaky gut syndrome refers to an increase in the permeability of the intestines. This condition may be caused by any significant damage to the intestines. Acute cases of leaky gut may be caused by infection, trauma, toxins, or medication overdoses. Chronic cases, in contrast, may be caused by food allergies, long-term NSAID use, or other causes. Treatments will be targeted at the underlying disease causing your cat's leaky gut.

  • Leaky gut syndrome refers to an increase in the permeability of the intestines. This condition may be caused by any significant damage to the intestines. Acute cases of leaky gut may be caused by infection, trauma, toxins, or medication overdoses. Chronic cases, in contrast, may be caused by food allergies, long-term NSAID use, or other causes. Treatments will be targeted at the underlying disease causing your dog's leaky gut.

  • Leishmaniasis is a disease caused by a protozoan parasite transmitted by sandflies and is most commonly seen in the Mediterranean, Middle East, and South and Central America. It has been reported in some parts of the United States. Clinical signs include hard skin nodules, weakness, decreased appetite, vomiting, diarrhea, and more. Diagnosis is based on travel history, clinical signs, and diagnostic testing. The goal of treatment is to resolve clinical signs. Prognosis is guarded to grave depending on the severity of the disease.

  • This handout discusses lens luxation in dogs. The lens is the transparent structure within the eye that focuses light on the retina. Lens luxation is when the support ligaments of the lens weaken or break, causing the lens to dislocate from its normal position. The various types, clinical signs, heredity of the condition, diagnosis, treatment, and prognosis are outlined.

  • Lenticular sclerosis is the term for a bluish, transparent haze that develops in the lens of the eye in middle-aged to senior cats. Vision does not appear to be significantly affected. While the exact mechanism is poorly understood, it appears that the lens gradually becomes denser or harder with age. There is no specific treatment for lenticular sclerosis, nor is treatment necessary.

  • Lenticular sclerosis is the term for a bluish, transparent haze that develops in the lens of the eye in middle-aged to senior dogs. Vision does not appear to be significantly affected. While the exact mechanism is poorly understood, it appears that the lens gradually becomes denser or harder with age. There is no specific treatment for lenticular sclerosis, nor is treatment necessary.

  • Lick granuloma in dogs, also known as acral lick dermatitis, is a condition manifested as chronic licking of an area of skin, usually on the forelimbs. This condition is thought to be both physical and psychological in nature. While the condition can be frustrating to get under control, most cases of lick granulomas can be successfully treated if the owner is willing to pursue extended tests and treatments.

  • One particularly dangerous type of foreign body in cats is a linear foreign body: a long, thin object such as string, yarn, or tinsel. If one end of the linear foreign body becomes lodged in the gastrointestinal tract, intestinal perforation may occur due to bunching up of the intestines. The most common signs of a linear foreign body include vomiting, anorexia (refusal to eat), dehydration, and lethargy. If your veterinarian suspects a linear foreign body, your cat will need an exploratory laparotomy (abdominal surgery).

  • The liver is an important organ necessary for controlling many different body functions. Signs of liver disease include increased drinking and urination, abdominal swelling, jaundice, digestive upset, and weight loss. Because of the varied actions of the liver there are several blood and urinary tests that can reveal liver disease. Imaging can be used to determine if there is a change in liver size or irregularity in liver tissue. Ultimately, a liver biopsy is often needed to definitively diagnose liver disease. A biopsy may be obtained by fine needle aspiration through the body wall or a surgical biopsy may be necessary. Anesthesia in a cat with liver disease will carry increased risk but often is relatively low. Treatment of liver disease depends on the diagnosis, but sometimes specific diets are recommended to help manage or slow the disease.