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MRI Features of Intravenous Leiomyomatosis Cover
Open Access
|Feb 2026

Figures & Tables

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Figure 1

Axial (A–C) and coronal (D) T2‑weighted images showing a large heterogeneous myometrial mass with lobulated contours and serpiginous extensions (arrows). Axial images (A–C) represent different levels of the tumor from superior to inferior.

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Figure 2

Axial DWI (b = 1000 s/mm²) (A) and corresponding ADC map (B) demonstrating the myometrial mass with high signal intensity on DWI and correspondingly high ADC values, indicating no diffusion restriction.

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Figure 3

Surgical specimen (A) and coronal T2‑weighted image (B) showing a uterus distorted by multiple nodules, extending into the left parametrium.

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Figure 4

A–D images demonstrating a tumor growing predominantly within venous structures, showing a clefted intraluminal contour. The lesion contains thick‑walled vessels, and the neoplastic cells exhibit smooth muscle and sometimes adipocytic differentiation. There is no increased mitotic activity, tumor necrosis, or cellular atypia, consistent with a diagnosis of intravenous leiomyomatosis, with extra‑uterine extension (B and C).

DOI: https://doi.org/10.5334/jbsr.4201 | Journal eISSN: 2514-8281
Language: English
Submitted on: Dec 27, 2025
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Accepted on: Jan 13, 2026
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Published on: Feb 4, 2026
Published by: Ubiquity Press
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2026 Beatriz Freixo, Delfim Doutel, Teresa Margarida Cunha, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.