Computed tomographic findings in 12 cases of canine multi-centric lymphoma with splenic and hepatic involvement.
JOURNAL OF SMALL ANIMAL PRACTICE(2017)
Abstract
OBJECTIVES : To describe the CT findings in a population of dogs with multi-centric lymphoma that involved the spleen and liver. MATERIALS AND METHODS : Clinical records between January 2008 and June 2015 were reviewed. Thoracic and abdominal CT examinations of patients diagnosed with multi-centric lymphoma were evaluated by a board-certified radiologist. A diagnosis of multi-centric lymphoma with splenic and hepatic involvement was based upon cytological identification and immunophenotyping of neoplastic lymphocytes in cellular samples harvested from a peripheral lymph node, the spleen and the liver. RESULTS : Twelve dogs were included in this study, of which 11 had B-cell lymphoma; immunophenotyping was inconclusive in one dog. The spleen appeared normal in seven dogs and nodules were identified in five dogs. Splenic nodules were hypoattenuating in four of five dogs and isoattenuating in one of five. After contrast administration, three of five appeared hypoattenuating and two of five isoattenuating. The liver appeared normal in 10 dogs and hepatic nodules were identified in two dogs. All hepatic nodules were isoattenuating before contrast and hypoattenuating following contrast administration. CLINICAL SIGNIFICANCE : The CT appearance of the spleen and liver was normal in the majority of dogs with multi-centric lymphoma. Fine needle aspiration of the spleen and liver is recommended when using CT to stage dogs with multi-centric lymphoma.
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Key words
tomographic findings,canine,hepatic,multi-centric
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