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Unexpected Artifact on ^99mTc-Methylene Diphosphonate Bone Scintigraphy.

Suliman G Salih^1,2, Abdelbagi O Osman², Ajnas M Alkatheeri³

¹Department of Radiography and Medical Imaging, Fatima College of Health Sciences, Al Ain, United Arab Emirates; and salim_suliman@hotmail.com.

Journal of Nuclear Medicine Technology

|July 17, 2024

Summary

An unexpected artifact on bone scintigraphy, caused by a radiotracer in an adhesive bandage, mimicked a rib lesion. This finding highlights the importance of artifact identification in nuclear medicine imaging.

Keywords:

bone scintigraphy breast cancer unexpected artifact

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Area of Science:

Nuclear medicine
Medical imaging
Radiopharmacy

Background:

Asymmetric hot spots in bone scintigraphy can complicate axial skeleton diagnosis.
Accurate interpretation of bone scans is crucial for effective patient management.

Purpose of the Study:

To describe an unusual artifact in bone scintigraphy caused by technetium-99m methylene diphosphonate.
To highlight the potential for external objects to create false-positive findings in nuclear imaging.

Main Methods:

A case study of a 55-year-old woman with breast cancer undergoing bone scintigraphy.
Identification and tracking of an unexpected focal lesion in the anterior ribs.
Comparison of initial scan with a rescanned image after artifact removal.

Main Results:

A solitary focal hot spot was initially observed in the left anterior ribs.
The hot spot was identified as an artifact originating from a radiotracer-contaminated adhesive bandage.
A repeat scan after bandage removal showed resolution of the artifact.

Conclusions:

Adhesive bandages contaminated with technetium-99m methylene diphosphonate can cause imaging artifacts.
Careful patient history and artifact recognition are essential for accurate bone scintigraphy interpretation.
Awareness of such artifacts can prevent misdiagnosis and unnecessary interventions.