Iranian Journal of Otorhinolaryngology

Iranian Journal of Otorhinolaryngology

MRI Features in Submandibular Gland Chronic Sclerosing Sialadenitis: A Report of Three Cases and Imaging Findings

Document Type : Case Report

Authors
Emanuela Ruberto 1
Emma Gangemi 1
Renato Covello 2
Raul Pellini 3
Antonello Vidiri 1
1 Department of Radiology and Diagnostic Imaging, IRCCS Regina Elena National Cancer Institute, Rome, Italy.
2 Department of Pathology, IRCCS Regina Elena National Cancer Institute, Rome, Italy.
3 Department of Otolaryngology & Head and Neck Surgery, IRCCS Regina Elena National Cancer Institute, Rome, Italy.
10.22038/ijorl.2020.47418.2583
Abstract
Introduction:
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 tumor 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.
 
Case Reports:
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.
 
Conclusion:
Definite diagnosis of Küttner tumor is histopathological. However imaging features are straightforward and can address radiologists toward the correct diagnosis.
Keywords
Chronic sclerosing sialadenitis
Head and neck
Submandibular gland
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Iranian Journal of Otorhinolaryngology
Volume 32, Issue 6
November and December 2020
Pages 397-401