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| CT diagnosis and differential diagnosis of parotid Warthin tumor |
| CUI Er-feng1， ZHANG Jin-song2, TANG Yong-qiang2 |
1. Department of Radiology, Xuchang Central Hospital, Xuchang Henan 461000, China;
2. Department of Radiology, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China |
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Abstract Objective: The CT findings of parotid Warthin tumors were studied to improve the ability of diagnosis and differential diagnosis of this disease. Methods: The clinical materials and imaging data of 32 cases of parotid Warthin tumors confirmed by surgery and pathology were retrospectively analyzed. Results: There were totally 53 lesions in 32 cases, of which 24 cases(75.0%) with lesions in unilateral side and 8 cases(25.0%) with lesions in bilateral sides. Among it there were 4 cases with unilateral multiple lesions and 3 cases bilateral multiple lesions. Moreover, we found 45 lesions in the posterior inferior quadrant of superficial lobe(84.9%), 5 lesions in the inter-leaves(9.4%), and 3 lesions in the deep lobe(5.7%). There are 47 lesions(88.7%) with round or oval shape and 6 lesions(11.3%) with lobulated or irregular shape. The tumors are mostly with both solid and cystic components. After enhancement the solid components manifested as “fast wash-in and fast wash-out” pattern; the cystic components had no enhancement and manifested as cystic or separated cavity and “fissure sign”. Conclusion: The specific CT manifestations of parotid Warthin tumors combined with the clinical characteristics are useful for the qualitative diagnosis and differential diagnosis of this disease.
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Received: 17 June 2016
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