CT scan assessment in salivary gland lithiasis diagnosis

M A Gardon; J M Foletti; S Avignon; N Graillon; C Chossegros

doi:10.1016/j.jormas.2017.11.012

CT scan assessment in salivary gland lithiasis diagnosis

J Stomatol Oral Maxillofac Surg. 2018 Apr;119(2):110-112. doi: 10.1016/j.jormas.2017.11.012. Epub 2017 Nov 22.

Authors

M A Gardon¹, J M Foletti², S Avignon³, N Graillon³, C Chossegros⁴

Affiliations

¹ Aix-Marseille university, Jardin du Pharo, 58, boulevard Charles-Livon, 13284 Marseilles cedex 07, France; Oral & maxillofacial department, hôpital de la Conception, 147, boulevard Baille, 13005 Marseille cedex 5, France. Electronic address: gardon.marc-antoine@orange.fr.
² Aix-Marseille university, Jardin du Pharo, 58, boulevard Charles-Livon, 13284 Marseilles cedex 07, France; Oral & maxillofacial & plastic surg department, hôpital Nord, chemin des Bourrelys, 13015 Marseille, France.
³ Aix-Marseille university, Jardin du Pharo, 58, boulevard Charles-Livon, 13284 Marseilles cedex 07, France; Oral & maxillofacial department, hôpital de la Conception, 147, boulevard Baille, 13005 Marseille cedex 5, France.
⁴ Aix-Marseille university, Jardin du Pharo, 58, boulevard Charles-Livon, 13284 Marseilles cedex 07, France; Oral & maxillofacial department, hôpital de la Conception, 147, boulevard Baille, 13005 Marseille cedex 5, France; Laboratoire parole et langage, 5, rue Pasteur, 13100 Aix-en-Provence, France.

PMID: 29175510
DOI: 10.1016/j.jormas.2017.11.012

Abstract

Introduction: The aim of the study was to assess computed tomography (CT) scan efficiency for the diagnosis of salivary lithiasis.

Methods: Patients who were included were all the patients who consulted in our department for main salivary gland (submandibular and parotid) obstruction symptoms between June 2014 and December 2016. A CT scan without injection was prescribed for all of them. The 163 patients were divided into two groups after the CT scan: patients with and without lithiasis. During surgery, we confirmed the presence or absence of the lithiasis previously diagnosed on the CT scan. The patients were divided in two groups: case and control groups. For statistical analysis, the sensitivity, specificity, and the negative and positive predictive values of the preoperative CT scan were calculated.

Results: A total of 163 patients with a salivary obstructive syndrome were included. On the CT scans, we found lithiases (hyperdense images) in 157 glands ("CT scan⊕" group), and we found no lithiasis in 6 glands ("CT scan" group). In the "CT scan⊕" group, 203 lithiases were present. During surgery, we found and removed lithiases in 155 patients (case group), and 8 patients had no lithiases (control group). The overall sensitivity, specificity, positive predictive value, and negative predictive values of the CT scan for the detection of lithiasis were 100%, 75%, 99%, and 100%, respectively. The specificity of CT scans for the lithiasis located in the anterior and middle third of the duct was 100%.

Discussion: According to our study, the CT scan is very efficient in diagnosing salivary main gland lithiases in patients with an obstructive syndrome.

Keywords: CT scan; Diagnosis; Lithiasis; Salivary glands.

MeSH terms

Humans
Lithiasis*
Parotid Gland
Radionuclide Imaging
Salivary Glands
Tomography, X-Ray Computed