ULTRASONOGRAPHY OF ALIMENTARY LYMPHOSARCOMA IN THE CAT |
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| Authors: | Dominique G Penninck DVM Antony S Moore BVSc MVSc Amy S Tidwell DVM Michael E Matz DVM Greg O Freden DVM |
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| Institution: | Department of Surgery, Section of Radiology, Tufts University, School of Veterinary Medicine and Medicine, North Grafton, MA 01536.;Department of Medicine, Tufts University, School of Veterinary Medicine and Medicine, North Grafton, MA 01536.;Department of Pathology, Tufts University, School of Veterinary Medicine and Medicine, North Grafton, MA 01536. |
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| Abstract: | Clinical, radiological and ultrasonographic findings from 22 cats with gastrointestinal lymphosarcoma were reviewed. The most common clinical findings were anorexia, weight loss, vomiting, lethargy, depression, fever, anemia and a palpable abdominal mass. Abdominal radiographs of 12 cats revealed a mass associated with the gastrointestinal tract and/or mesentery, and decreased serosal detail, suggestive of peritoneal effusion. The most common ultrasonographic finding was transmural gastric or intestinal thickening associated with loss of normal wall layering, reduced wall echogenicity and localized hypomotility. As is noted in people, other patterns such as transmural-segmental, transmural-nodular, transmural-bulky and mucosal infiltration were represented. In 3 cats, mesenteric lymph-adenopathy was responsible for most of the mass-effect. Fine-needle aspiration biopsy, automated microcore biopsy, endoscopic biopsy or necropsy confirmed the diagnosis of lymphosarcoma in all cats. Chemotherapy was instituted in 19 cats. Only 6 cats had a complete response to treatment. The results of this study indicate that ultrasonography is a valuable tool for the diagnosis of feline alimentary lymphosarcoma and that biopsies can be obtained under ultrasonographic guidance. |
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| Keywords: | feline gastrointestinal lymphosarcoma ultrasonography percutaneous fine-needle aspiration biopsy percutaneous automated microcore biopsy |
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