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Related Experiment Video

Updated: Jun 15, 2026

Models of Bone Metastasis

Models of Bone Metastasis

Published on: September 4, 2012

Multiple fluid-filled bone metastases.

Laurent Frenzel¹, Rose-Marie Javier, Francoise Eichler

¹Service de rhumatologie, hôpital de Hautepierre, 1, avenue Molière, 67000 Strasbourg, France. frenzel.laurent@hotmail.com

Joint Bone Spine

|March 3, 2010

Summary

This study reports an extremely rare case of breast cancer with multiple fluid-fluid levels in bone metastases, a finding usually associated with benign conditions. Awareness of this rare sign can aid in diagnosing malignancy, especially in spinal imaging.

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Last Updated: Jun 15, 2026

Models of Bone Metastasis

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Published on: September 4, 2012

Modeling Primary Bone Tumors and Bone Metastasis with Solid Tumor Graft Implantation into Bone

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Multi-modal Imaging of Angiogenesis in a Nude Rat Model of Breast Cancer Bone Metastasis Using Magnetic Resonance Imaging, Volumetric Computed Tomography and Ultrasound

Multi-modal Imaging of Angiogenesis in a Nude Rat Model of Breast Cancer Bone Metastasis Using Magnetic Resonance Imaging, Volumetric Computed Tomography and Ultrasound

Published on: August 14, 2012

Area of Science:

Oncology
Radiology
Pathology

Background:

Bone metastases are common in advanced cancers, typically presenting as lytic, sclerotic, or mixed lesions on imaging.
Fluid-fluid levels in bone are rare and usually indicative of benign conditions like aneurysmal bone cysts.

Observation:

Magnetic resonance imaging (MRI) revealed multiple fluid-fluid levels within spinal and sacral bone metastases.
This presentation is exceedingly unusual, with only two prior reports of bone metastases exhibiting multiple fluid-fluid levels.

Findings:

The fluid-fluid level arises from hemorrhage within the tumor, causing blood components to layer by density.
The presence of multiple fluid-fluid levels in bone lesions, while rare, can be a significant indicator of underlying malignancy.

Implications:

Radiologists and oncologists should consider malignancy in the differential diagnosis of bone lesions with multiple fluid-fluid levels.
This case highlights the importance of recognizing rare imaging findings for accurate cancer diagnosis and staging.