The appearance of canine insulinoma on dual phase computed tomographic angiography

Objectives To further evaluate the appearance of insulinoma in dogs on dual-phase CT angiography, given disparity findings recent publications. establish whether angiographic localisation correlates with surgical findings. Materials and Methods Single centre study a final diagnosis which underwent abdominal angiography. Scans were retrospectively re-evaluated for specific features by two board-certified veterinary radiologists. These also subsequently compared to histopathological reports determine accuracy lesion CT. Results Thirty-five cases included analysis, pancreatic nodules identified 33. Twenty-one confirmed as histopathology. Jack Russell Terriers over-represented. Twenty 21 27 33 overall showed hyperattenuation arterial phase. The mean size was 15.1 mm, 18.2% larger than 20 mm. Eighteen eight 12 suspected insulinomas caused deformation shape, only result this feature these lesions isoattenuating throughout study. Pancreatic location at surgery matched that described images 17 19 where report. Clinical Significance In contrast publications, suggests phase is predominant feature, hypoattenuation or isoattenuation are much less common. angiography accurate prediction before most cases.