Hi stranger! Signing up for MypetMD is easy, free and puts the most relevant content at your fingertips.

Get Instant Access To

  • 24/7 alerts for pet-related recalls

  • Your own library of articles, blogs, and favorite pet names

  • Tools designed to keep your pets happy and healthy



or Connect with Facebook

By joining petMD, you agree to the Privacy Policy.

PetMD Seal

Intestinal Cancer (Adenocarcinoma) in Dogs

Adenocarcinoma of the Stomach, Intestine, or Rectum in Dogs

 

Adenocarcinoma is a malignant tumor originating in the glandular and epithelial tissue (the lining of the internal organs). This type of malignant tumor growth can take place in many parts of the body, including the gastrointestinal system of dogs. It may invade any part of the gastrointestinal system, including the stomach, the small and large intestine, and rectum. It commonly affects older dogs, usually more than six years of age. No particular breed is known to be predisposed and it is more common in male dogs than females. This type of cancer usually has a poor prognosis.

 

Symptoms and Types

 

Symptoms are most commonly related to the gastrointestinal system and include:

 

  • Vomiting
  • Weight loss
  • Poor appetite
  • Abdominal pain
  • Hematemesis (vomiting of blood)
  • Melena (black colored feces due to hemorrhage in gastrointestinal system)
  • Bright red blood in feces
  • Tenesmus (urgent but ineffective defecation)

 

Causes

 

  • The exact cause is still unknown
  • Genetic cause is suspected in Belgian shepherds

 

Diagnosis

 

You will need to provide a thorough history of your dog’s health leading up to the onset of symptoms. Your veterinarian will perform a complete physical examination on your dog, with blood tests, fecal tests and a biochemistry profile. The blood tests usually show mild to severe anemia, which is mainly due to gradual blood loss through the feces. Feces samples will also be observed under microscope to examine for the presence of hidden blood that is not visible grossly. Contrast radiography (using an injected contrast chemical agent to view the internal organs) may reveal the presence, location, and size of the neoplasm. Ultrasound is also a valuable tool in the diagnosis of adenocarcinoma of the gastrointestinal tract. Using ultrasound, your veterinarian may take a sample from the intestines or stomach, using a needle, to look for the presence of neoplastic cells in the sample fluid. An endoscope, a tubular diagnostic viewing tool that is inserted into the body, may also be used to collect a sample biopsy. If none of the above-mentioned procedures works well in confirming a diagnosis, your veterinarian may decide to perform surgery, which will ultimately establish the diagnosis.

 

 

 

Related Articles

Mouth Cancer (Amelobastoma) in Dogs
Ameloblastoma, previously known as adamantinoma, is an uncommon neoplasm that affects...
READ MORE
Carcinoid Cancer in Dogs
Carcinoid tumors are small neuroendocrine tumors, typically of the gastrointestinal...
READ MORE
Leukemia (Acute) in Dogs
Acute lymphoblastic leukemia is a disease in which cancerous lymphoblasts (cells...
READ MORE

Does your pet have an identification tag or microchip?

  • Lifetime Credits:
  • Today's Credits:
Hurry Before All Seats are Taken!
Enroll
Be an A++ Pet Parent! Take fun & free courses to earn badges & certifications. Choose a course»
Search dog Articles

 

Latest In Dog Nutrition

How Your Overweight Pet Could Benefit from ...
Pet obesity has reached epidemic proportions. Fortunately, there are some things...
READ MORE
The Role of Exercise in Pet Weight Loss
Exercise is beneficial for our pets in many ways, including weight loss, and here's...
READ MORE
Pet Food Ingredients that Promote Longer Life
Pet foods, in order to promote a healthy long life, must be balanced and complete...
READ MORE
Around the Web
MORE FROM PETMD.COM