Abstract:Objective: To study features of minor salivary gland tumors on the CT and MR image. Methods: The CT, MR image and clinical information of 31 patients with surgery and pathology confirmed tumors of minor salivary glands were retrospective analyzed. Result: Fourteen cases of minor salivary gland tumors among 31 cases were benign tumors, and most of them were adenoma. The average diameter of tumors was 2.3 cm, most tumors located in the palatine. Tumors were shown soft tissue density on CT, low or equal signal on T1WI and slightly higher signal on T2WI. Thirteen cases were well-defined and 4 cases had bone oppression. Tumors were moderate enhancement in the post-enhanced scan. Malignant tumors were seen in 17 cases, most of them were adenoid cystic carcinoma. They often appeared in the palatine. Most of them were shown mixed low density on CT, mixed slightly low signal on T2WI, few of them were shown slightly high signal. Fourteen cases were with unclear boundary and bone destruction. Tumors were mild to obvious heterogeneous enhancement in the post-enhance scan. Conclusion: CT and MRI are of considerable value in diagnosis and differential diagnosis of minor salivary gland tumor.
郭俊辰,孙玲玲. 小涎腺肿瘤的影像学分析#br#[J]. 中国临床医学影像杂志, 2016, 27(8): 543-546.
GUO Jun-chen, SUN Ling-ling. Imaging analysis of minor salivary gland tumor. JOURNAL OF CHINA MEDICAL IMAGING, 2016, 27(8): 543-546.
[1]Li LJ, Li Y, Wen YM, et al. Clinical analysis of salivary gland tumor cases in West China in past 50 years[J]. Oral Oncol, 2008, 44(2): 187-192.
[2]杨利和,姚小武,卢子正,等. 口腔小涎腺肿瘤37例临床分析[J]. 临床和实验学杂志,2009,8(6):63-64.
[3]Bittar RF, Ferraro HP, Moraes Gonalves FT, et al. Neoplasms of the salivary glands: analysis of 727 histopathological reports in a single institution[J]. Otolaryngol Pol, 2015, 69(4): 29-34.
[4]Shah SA, Riaz U, Zubair M, et al. Surgical presentation and outcome of parotid gland tumours[J]. Coll Physicians Surg Pak, 2013, 23(9): 625-628.
[5]Christe A, Waldherr C, Hallett R, et al. MR imaging of parotid tumors: typical lesion characteristics in MR imaging improve discrimination between benign and malignant disease[J]. AJNR, 2011, 32(7): 1202-1207.
[6]Kato H, Kanematsu M, Sakurai K, et al. Adenoid cystic carcinoma of the maxillary sinus: CT and MR imaging findings[J]. Jpn J Radiol, 2013, 31(11): 744-749.
[7]Shimamoto H, Chindasombatjaroen J, Kakimoto N, et al. Perineural spread of adenoid cystic carcinoma in the oral and maxillofacial regions: evaluation withcontrast-enhanced CT and MRI[J]. Dentomaxillofac Radiol, 2012, 41(2): 143-151.
[8]Kashiwagi N, Dote K, Kawano K, et al. MRI findings of mucoepidermoid carcinoma of the parotid gland: correlation with pathological features[J]. Br J Radiol, 2012, 85(1014): 709-713.
[9]Lee YY, Wong KT, King AD, et al. Imaging of salivary gland tumours[J]. Eur J Radiol, 2008, 66(3): 419-436.
[10]Kei PL, Tan TY. CT “invisible” lesion of the major salivary glands a diagnostic pitfall of contrast-enhanced CT[J]. Clin Radiol, 2009, 64(7): 744-746.
[11]Habermann CR, Gossrau P, Graessner J, et al. Diffusion-weighted echo-planar MRI: a valuable tool for differentiating primary parotid gland tumors?[J]. Rofo, 2005, 177(7): 940-945.
[12]Habermann CR, Arndt C, Graessner J, et al. Diffusion-weighted echo-planar MR imaging of primary parotid gland tumors: is a prediction of different histologic subtypes possible?[J]. AJNR, 2009, 30(3): 591-596.