{"id":696,"date":"2012-07-05T17:15:49","date_gmt":"2012-07-05T17:15:49","guid":{"rendered":"http:\/\/www.animalhealthfoundation.net\/blog\/?p=696"},"modified":"2012-07-05T17:15:49","modified_gmt":"2012-07-05T17:15:49","slug":"how-many-ways-can-the-thyroid-malfunction","status":"publish","type":"post","link":"https:\/\/www.animalhealthfoundation.org\/blog\/2012\/07\/how-many-ways-can-the-thyroid-malfunction\/","title":{"rendered":"How many ways can the thyroid malfunction"},"content":{"rendered":"<table border=\"0\" cellspacing=\"3\" cellpadding=\"0\">\n<tbody>\n<tr>\n<td>Posted: 04 Jul 2012 06:38 AM PDT<\/p>\n<p><strong><em>From the Animal Endocrine Clinic Blog by Dr. Mark E. Peterson<\/em><\/strong><\/p>\n<p>Thyroid disease (i.e., hypothyroidism, hyperthyroidism, and \u00a0 thyroid tumors) is common in dogs and cats. Dr. Ann Hohenhaus, an oncologist \u00a0 and former\u00a0colleague\u00a0of mine at the Animal Medical Center in New \u00a0 York City, wrote the following blog post on WebMD about 2 dogs and a cat with \u00a0 thyroid disease that I thought was worth sharing.<\/p>\n<p>The first case concerns a dog with thyroid cancer; the second case a hyperthyroid \u00a0 cat who previously had\u00a0intestinal\u00a0lymphoma (a cancer); and the \u00a0 third case of a dog with hypothyroidism.<\/p>\n<p><strong><a href=\"https:\/\/feedproxy.google.com\/~r\/WebMD\/PetClinic\/~3\/_rF4k8KFifI\/how-many-ways-can-the-thyroid-malfunction.html\">How Many Ways \u00a0 Can the Thyroid Malfunction?<\/a><\/strong><br \/>\n<em>By Ann Hohenhaus, DVM<\/em><\/p>\n<p>The thyroid gland sits in the neck of dogs and cats, just below the voice \u00a0 box, and controls metabolic functions. Most of the time, a routine physical \u00a0 examination cannot detect the organ if it is normal.<\/p>\n<p>Last week, my patient list ran the gamut of thyroid dysfunction. Here is a \u00a0 sampling:<\/p>\n<p><strong>A Tail of Two Thyroids<\/strong><br \/>\nSome days, strange coincidences happen in the waiting room. Today it was two \u00a0 dogs, both with thyroid cancer. Although measuring 15 centimeters in length, \u00a0 Beckey\u2019s thyroid tumor had been surgically removed. The biopsy showed her \u00a0 tumor trying to escape into the lymph vessels and she was waiting her turn \u00a0 for chemotherapy, administered to halt the spread. Her treatment involves \u00a0 intravenous administration of two different chemotherapy agents and Beckey so \u00a0 far has sailed through the treatment with flying colors.<\/p>\n<p>As Beckey was leaving the waiting room, Henry entered. A CT scan showed his \u00a0 thyroid tumor had already spread to the lymph nodes in his neck, precluding \u00a0 surgical removal. He was in for a check-up following completion of four \u00a0 radiation therapy treatments. Careful measurement of his tumor with calipers \u00a0 showed no increase in tumor size. The radiation treatment arrested tumor \u00a0 growth but had given him a sore esophagus. I had warned the owners about this \u00a0 type of side effect before we started treatment and told them to expect it to \u00a0 start resolving about two weeks after he completed his treatment. Henry did \u00a0 not disappoint us. Through telephone triage, we had already rearranged his \u00a0 medications to make his throat less painful. Henry spends summer in the \u00a0 country but in the fall he will come back to The AMC for measurement of the \u00a0 tumor and a chest x-ray.<\/p>\n<p><strong>Old Patient, New Problem<\/strong><br \/>\nOtra\u2019s family was worried. This cute kitty had completed chemotherapy for \u00a0 intestinal lymphoma about a year ago, but suddenly her weight plummeted. I \u00a0 could see from the look on their faces they were sure the cancer was back. \u00a0 Auscultation of Otra\u2019s heart discovered a very elevated heart rate, prompting \u00a0 a test of her thyroid levels. Overactive thyroid glands ramp up the cat\u2019s \u00a0 metabolism and they lose weight despite eating well, have a high heart rate, \u00a0 and are very peppy. An abdominal ultrasound showed no evidence the lymphoma \u00a0 had recurred and blood tests showed the thyroid was overactive. I sent \u00a0 thyroid-suppressing medications home with the relieved family and planned to \u00a0 reassess the thyroid hormone levels in two weeks.<\/p>\n<p><strong>Porterhouse to Pork Chop<\/strong><br \/>\nEvery time I saw Mango to follow up on a skin tumor that had been completely \u00a0 removed via surgery, she had gained another pound. This 60-pound Portuguese \u00a0 Water Dog should have weighed 50 pounds. The owners took her swimming, fed \u00a0 her diet food from feeding toys, and still she gained two more pounds. During \u00a0 an evaluation for a urinary tract infection, we noted her thyroid hormone \u00a0 levels were borderline low. When we retested the levels three months later, \u00a0 we confirmed diagnosis of hypothyroidism. Low thyroid function, the opposite \u00a0 of Otra\u2019s problem, can cause weight gain. Since she started treatment with \u00a0 thyroid supplementation, Mango has lost nearly 6 pounds and gone from a \u00a0 20-ounce porterhouse to a 4-ounce pork chop over the past few months!<\/p>\n<p>There you have it, thyroid malfunction runs the gamut of disease: overactive, \u00a0 underactive, and two different tumors, all in one tiny organ.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"<p>Posted: 04 Jul 2012 06:38 AM PDT From the Animal Endocrine Clinic Blog by Dr. Mark E. Peterson Thyroid disease (i.e., hypothyroidism, hyperthyroidism, and \u00a0 thyroid tumors) is common in dogs and cats. Dr. Ann Hohenhaus, an oncologist \u00a0 and former\u00a0colleague\u00a0of mine at the Animal Medical Center in New \u00a0 York City, wrote the following [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[12,17],"tags":[],"class_list":["post-696","post","type-post","status-publish","format-standard","hentry","category-dogs","category-medical-issues"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How many ways can the thyroid malfunction | The Animal Health Foundation<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.animalhealthfoundation.org\/blog\/2012\/07\/how-many-ways-can-the-thyroid-malfunction\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How many ways can the thyroid malfunction | The Animal Health Foundation\" \/>\n<meta property=\"og:description\" content=\"Posted: 04 Jul 2012 06:38 AM PDT From the Animal Endocrine Clinic Blog by Dr. Mark E. Peterson Thyroid disease (i.e., hypothyroidism, hyperthyroidism, and \u00a0 thyroid tumors) is common in dogs and cats. 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