Ruberto Emanuela, Gangemi Emma, Covello Renato, Pellini Raul, Vidiri Antonello
Department of Radiology and Diagnostic Imaging, IRCCS Regina Elena National Cancer Institute, Rome, Italy.
Department of Pathology, IRCCS Regina Elena National Cancer Institute, Rome, Italy.
Iran J Otorhinolaryngol. 2020 Nov;32(113):397-401. doi: 10.22038/ijorl.2020.47418.2583.
Chronic sclerosing sialadenitis (Küttner tumor) is a relatively uncommon and often under-recognized cause of salivary gland enlargement, characterised by sclerosing IgG4-related inflammation, producing a hard swelling of the gland that mimics malignancy. The name is tricky and misleading, in fact the disease has no histological features of malignancy, but still it cannot easily be distinguished from cancer because of its hard consistency to touch.
We aim to report three cases of Küttner tumor and to review morphological MRI features (homogeneous T1- and T2-hypointensity, homogeneous contrast enhancement) and diffusion weighted imaging findings (low ADC values) which can help radiologists to reach the correct diagnosis.
Definite diagnosis of Küttner tumor is histopathological. However imaging features are straightforward and can address radiologists toward the correct diagnosis.
慢性硬化性涎腺炎（库特纳瘤）是导致涎腺肿大的相对不常见且常未被充分认识的病因，其特征为硬化性IgG4相关炎症，可使腺体出现质地坚硬的肿胀，类似恶性肿瘤。这个名称容易让人误解，实际上该疾病并无恶性肿瘤的组织学特征，但因其质地坚硬，仍难以与癌症区分开来。
我们旨在报告3例库特纳瘤病例，并回顾其形态学MRI特征（T1加权像和T2加权像均呈均匀低信号、均匀强化）以及扩散加权成像表现（表观扩散系数值较低），这些特征有助于放射科医生做出正确诊断。
库特纳瘤的明确诊断需依靠组织病理学检查。然而，其影像学特征明确，可帮助放射科医生做出正确诊断。
