Leiomyosarcoma MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief:  Nima Nasiri, M.D.[2]

## Overview

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MRI is usefull diagnostic tool for detecting tumor's spread to lymph nodes or internal organs in pelvic or abdomen, it also has a valuable role in follow-up for the evaluation for tumor recurrence. Findings on MRI of patients with leiomyosarcoma can be heterogenous mass with irregular borders.

## MRI

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On T1-weighted images of MRI, leiomyosarcomas has the following descriptions:

* large infiltrating myometrial mass of heterogeneous hypointensity with irregular margins.

On T2-weighted images, tumors have the following features:

* Intermediate-to-high signal intensity, with central hyperintensity indicative of extensive necrosis.
* Hemorrhage is common and calcification may be present.[1]

## References

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1. ↑ Bretan PN, Williams RD, Hricak H (1986) Preoperative assessment of retroperitoneal pathology by magnetic resonance imaging. Primary leiomyosarcoma of inferior vena cava. Urology 28 (3):251-5. PMID: 3750612

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