Oral Radiology

, Volume 35, Issue 1, pp 11–15 | Cite as

Prediction of malignancy of submandibular gland tumors with apparent diffusion coefficient

  • Ahmed Abdel Khalek Abdel RazekEmail author
Original Article



This study was performed to predict malignancy of submandibular gland tumors using the apparent diffusion coefficient (ADC).


In total, 31 patients (19 male, 12 female; age, 16–71 years) with solid submandibular gland tumors were retrospectively analyzed. All patients underwent single-shot echo-planar diffusion-weighted magnetic resonance imaging of the submandibular gland region. ADC maps of the submandibular gland were reconstructed. The ADC value of the submandibular gland tumors was calculated. A freehand region of interest encompassing the homogenous tumor and solid part of the heterogeneous tumor was established.


The mean ADC for submandibular gland malignancy (1.15 ± 0.09 × 10−3 mm2/s) was significantly lower than that for benignancy (1.55 ± 0.25 × 10−3 mm2/s, P = 0.001). An ADC of 1.26 × 10−3 mm2/s could predict malignancy of submandibular gland tumors with an area under the curve of 0.869, accuracy of 84%, sensitivity of 88%, and specificity of 81%.


The ADC is a noninvasive imaging parameter that can be used for prediction of malignancy of submandibular gland tumors.


Diffusion Magnetic resonance imaging Submandibular Tumor 


Compliance with ethical standards

Conflict of interest

Ahmed Abdel Khalek Abdel Razek declares no conflict of interest.

Human and animal rights statement

This article does not contain any studies with human or animal subjects performed by the author.


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Copyright information

© Japanese Society for Oral and Maxillofacial Radiology and Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  1. 1.Department of Diagnostic Radiology, Faculty of MedicineMansoura UniversityMansouraEgypt

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