MR sialographic assessment of the masseter muscle and the ductal kinking in patients with recurrent parotitis.

Autor: Capaccio P; Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy.; Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy., Lazzeroni M; Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy. matteo.lazzeroni@unimi.it.; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy. matteo.lazzeroni@unimi.it., Lo Russo F; Neuroradiology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy., Torretta S; Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy.; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy., Di Pasquale D; Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy., Conte G; Neuroradiology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy., Firetto MC; Operative Unit of Radiology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Di Milano, 20122, Milan, Italy., Nicolino G; Breast Unit, Fondazione IRCCS San Gerardo Dei Tintori, Via G. B. Pergolesi 33, Monza, Italy., Gaffuri M; Department of Otolaryngology and Head and Neck Surgery, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy.; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy., Carrafiello G; Operative Unit of Radiology, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico Di Milano, 20122, Milan, Italy.
Jazyk: angličtina
Zdroj: La Radiologia medica [Radiol Med] 2024 May; Vol. 129 (5), pp. 785-793. Date of Electronic Publication: 2024 Mar 21.
DOI: 10.1007/s11547-024-01802-1
Abstrakt: Dysfunction of the masseter muscle may cause pathological kinking of the parotid duct leading to parotitis; MR sialography is a non-invasive radiological examination that allows to evaluate dynamically the ductal system of the parotid glands. In the present study we aimed to assess the relationships between Stensen's duct and masseter muscle and their implications in the aetiopathogenesis of recurrent parotitis secondary to masseter muscle dysfunction. Forty-one patients with recurrent unilateral parotitis and nine with bilateral recurrent parotitis, all with a clinical suspicious of masseter muscle hypertrophy due to bruxism were enrolled. They underwent ultrasonography as a first line examination and then MR sialography and sialendoscopy. Different anatomical features were studied. Involved parotid glands had a wider duct compared to contralateral unaffected parotid glands of patients with recurrent parotitis (p = 0.00134); male subjects with parotitis had a longer duct compared to the salivary glands of healthy patients (p = 0.00943 for affected glands and p = 0.00629 for the contralateral). A concordance between the evidence of an acute duct angle during sialendoscopy and a wider duct in patients with parotitis was observed although not statistically significant. These initial findings suggest that the masticatory muscle dysfunction related to bruxism seems to condition alteration of parotid duct course and anatomy thus favouring the occurrence of recurrent parotitis. A specific diagnostic iter based on clinical evaluation, dynamic ultrasonography and MR sialography, is therefore, mandatory to confirm the relationship between masseter muscle anatomy and parotid duct anomalies; this is the premise for an adequate therapeutic approach to underlying masticatory muscle disorder.
(© 2024. The Author(s).)
Databáze: MEDLINE
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