![]() ![]() ![]() All adrenal gland lesions >20 mm in diameter were histologically confirmed as malignant neoplasms (pheochromocytoma and adenocarcinoma). Analysis of ultrasonographic predictive parameters showed a significant association between lesion size and malignant tumors. Ultrasonographic examination showed high specificity (100%) but low sensitivity (63.7%) for identifying the adrenal lesions, which improved with increasing lesion size. Lesions based on histology were classified as cortical adrenal hyperplasia ( n = 67), adenocarcinoma ( n = 17), pheochromocytoma ( n = 10), metastases ( n = 7), adrenal adenoma ( n = 4), and adrenalitis ( n = 4). Of these, 50 dogs had normal adrenal glands whereas 69 showed pathological ones. ResultsĬlinical records of 119 dogs that had undergone ultrasound adrenal gland and histological examination were reviewed. To this end, we compared diagnosis based on ultrasound appearance and histological findings and evaluated ultrasound criteria for predicting malignancy. The goal of our study was to investigate which ultrasound features of adrenal gland abnormalities could aid in discriminating between benign and malignant lesions. However, correlations between sonographic and histopathological changes have been elusive. Ultrasonography to visualize adrenal gland lesions and evaluate incidentally discovered adrenal masses in dogs has become more reliable with advances in imaging techniques. ![]()
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