Related Experiment Videos
Magnetic resonance imaging of extraabdominal desmoid tumors
A M De Schepper1, H R Degryse, F A Ramon
1Department of Radiology, University Hospital Antwerp, Edegem, Belgium.
Abstract:
The authors describe the MR appearance of extra-abdominal desmoid in three patients, with longitudinal follow-up during a period of up to 29 months in two of them. For the MR examinations various pulse sequences, including spin-echo and gradient-echo sequences, were used. Both non-enhanced and Gd-DTPA contrast enhanced studies were made. We found gradient-echo T2*-weighted sequences best suited for the detection of extra-abdominal desmoids. Best correlation between MR features and histologic findings was obtained on spin-echo T2- and contrast enhanced T1-weighted studies. Although preliminary, our results suggest that MRI might predict evolution of extra-abdominal desmoids by providing data about cellularity and relative amount of mucoid matrix of the lesions.
Insights
Magnetic resonance imaging (MRI) can detect extra-abdominal desmoids. Specific MRI sequences may predict lesion cellularity and matrix, potentially forecasting desmoid tumor evolution.
Area of Science:
- Radiology
- Oncology
- Medical Imaging
Background:
- Desmoid tumors, also known as aggressive fibromatosis, are rare soft tissue neoplasms.
- Extra-abdominal desmoids present diagnostic challenges, necessitating advanced imaging techniques for characterization.
Purpose of the Study:
- To evaluate the magnetic resonance (MR) imaging appearance of extra-abdominal desmoid tumors.
- To determine the optimal MR sequences for detecting and characterizing these lesions.
- To explore the potential of MRI in predicting tumor evolution.
Main Methods:
- Retrospective analysis of MR imaging in three patients with extra-abdominal desmoids.
- Utilized various pulse sequences including spin-echo and gradient-echo.
- Performed both non-enhanced and Gadolinium-DTPA (Gd-DTPA) contrast-enhanced studies.
- Correlated MR findings with histological data.
Main Results:
- Gradient-echo T2*-weighted sequences demonstrated superior detection of extra-abdominal desmoids.
- Spin-echo T2- and contrast-enhanced T1-weighted studies showed the best correlation with histological findings.
- Preliminary results suggest MRI can provide data on lesion cellularity and mucoid matrix content.
Conclusions:
- MRI is a valuable tool for evaluating extra-abdominal desmoids.
- Specific MR sequences can aid in lesion detection and characterization.
- MRI findings may offer insights into the potential evolution of desmoid tumors.