Struma ovarii MRI

Struma ovarii Microchapters
Home
Patient Information
Overview
Historical Perspective
Classification
Pathophysiology
Causes
Differentiating Struma ovarii from other Diseases
Epidemiology and Demographics
Risk Factors
Screening
Natural History, Complications and Prognosis
Diagnosis
History and Symptoms
Physical Examination
Laboratory Findings
ECG
X-ray
Echocardiography and Ultrasound
CT scan
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
Struma ovarii MRI On the Web
Most recent articles
Most cited articles
Review articles
CME Programs
Powerpoint slides
Images
American Roentgen Ray Society Images of Struma ovarii MRI All Images X-rays Echo & Ultrasound CT Images MRI
Ongoing Trials at Clinical Trials.gov
US National Guidelines Clearinghouse
NICE Guidance
FDA on Struma ovarii MRI
CDC on Struma ovarii MRI
Struma ovarii MRI in the news
Blogs on Struma ovarii MRI
Directions to Hospitals Treating Psoriasis
Risk calculators and risk factors for Struma ovarii MRI

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aravind Reddy Kothagadi M.B.B.S[2]

Overview

MRI may be helpful in the diagnosis of Struma ovarii. Findings on MRI suggestive of Struma ovarii include solid and cystic lesions.

MRI

• MRI may be helpful in the diagnosis of Struma ovarii. Findings on MRI suggestive of Struma ovarii include:
  • Solid and cystic lesions.
• Advanced MRI might help to characterise this unusual ovarian mass.

Three-tesla MR images of a mature teratoma or dermoid cyst arising from the left ovary in a 53-year-old patient. The fatty component in the lesion is hyperintense on the 3D-LAVA fat-only T1-weighted image (a) and hypointense on the water-only T1-weighted image (b) (arrows). c T2-weighted high-resolution image shows the fatty component within the lesion to be hyperintense (arrow). The nidus itself contains a fatty component that is also hyperintense on 3D-LAVA fat-only T1-weighted image (a) and hypointense on the water-only T1-weighted image (b) (arrowheads). d Diffusion-weighted image using a b value of 1,200 s/mm2 shows a high signal intensity rim representing restricted diffusion from sebaceous material surrounding the nidus and punctuate areas of restricted diffusion scattered throughout the nidus (arrowhead). The pedunculated uterine fibroid (T) at the level of the right lateral aspect of the uterus presents with typical hypointensity on T2 (c) without associated restricted diffusion (d)

(a), diffusion-weighted images with b = 1,200 mm/s2 (b) and T1 fat-saturated images (LAVA) pre-gadolinium (c) and post-gadolinium (d) within the left hemi-pelvis. The solid portion of the mixed solid and cystic lesion presents with the typical low signal intensity on the T2-weighted image (a) and intermediate signal intensity on the T1-weighted image (c) (arrows). d These solid components enhance markedly (arrow) which together with the multilobulate surface resemble a “lacy” pattern. b This lacy pattern in keeping with solid thyroid tissue is also obvious on the diffusion-weighted images (arrow)

Three-tesla T2 high-resolution images of a benign and malignant struma ovarii for comparison. a Sagittal image showing the large mixed solid and cystic malignant struma (arrow). b Axial plane image through a benign struma shows an equally complex large lesion (arrow). a, b Ascites is present in both the benign and the malignant case (A)