Sialolithiasis MRI

Sialolithiasis Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Sialolithiasis from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
Diagnostic Study of Choice
History and Symptoms
Physical Examination
Laboratory Findings
Electrocardiogram
X Ray
Echocardiography or Ultrasound
CT
MRI
Other Imaging Findings
Other Diagnostic Studies
Treatment
Medical Therapy
Surgery
Primary Prevention
Secondary Prevention
Cost-Effectiveness of Therapy
Future or Investigational Therapies
Case Studies
Case #1
Sialolithiasis MRI On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Sialolithiasis MRI All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Sialolithiasis MRI
CDC on Sialolithiasis MRI
Sialolithiasis MRI in the news
Blogs on Sialolithiasis MRI
Directions to Hospitals Treating Sialolithiasis
Risk calculators and risk factors for Sialolithiasis MRI

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

There are no MRI findings associated with [disease name].

OR

[Location] MRI may be helpful in the diagnosis of [disease name]. Findings on MRI suggestive of/diagnostic of [disease name] include [finding 1], [finding 2], and [finding 3].

OR

There are no MRI findings associated with [disease name]. However, a MRI may be helpful in the diagnosis of complications of [disease name], which include [complication 1], [complication 2], and [complication 3].

MRI

• There are no MRI findings associated with [disease name].

OR

• Head and neck MRI may be helpful in the diagnosis of sialolithiasis. Findings on MRI suggestive of sialolithiasis include:
  • Low signal regions(outlined by high signal saliva on T2 weighted images

• There are no MRI findings associated with [disease name]. However, a MRI may be helpful in the diagnosis of complications of [disease name], which include:
  • [Complication 1]
  • [Complication 2]
  • [Complication 3] MRI is able not only to visualise larger stones but able in many instances to map the ductal anatomy and to assess the gland 2,4. Stones appear as low signal regions (on all sequences) outlined by high signal saliva on T2 weighted images 2. MRI is able to distinguish acute from chronic obstruction as well as glands with only incomplete obstruction 1. In the acute setting glands are enlarged and demonstrate inflammatory changes:
  • T1: reduced signal compared to the other side
  • T2: increased signal (best seen on fat suppressed sequences) In chronic cases, the gland is reduced in size and demonstrates fatty atrophy 1:
  • T1: increased signal compared to the other side
  • T2: reduced signal of gland parenchyma which is itself reduced in amount In cases where a small non-obstructive sialolith is present, the gland may appear entirely normal.