Medial splenic tubercle. Potential radionuclide ventriculography pitfall.

Area of Science:

• Cardiology
• Nuclear Medicine
• Radiology

Background:

• Radionuclide ventriculography is a key diagnostic tool for assessing cardiac function.
• Interpreting wall motion abnormalities requires careful consideration of all potential sources of signal interference.

Observation:

• An unusual finding of blood pool activity was noted within a medial splenic tubercle.
• This activity appeared to project over the apical region of the left ventricle.

Findings:

• The splenic blood pool activity created an artifactual appearance of an apical wall motion abnormality on radionuclide ventriculography.
• This artifact could be mistaken for true cardiac dysfunction if not properly identified.

Implications:

• Accurate interpretation of radionuclide ventriculography requires awareness of potential non-cardiac sources of activity.
• This case underscores the need for meticulous review of imaging data to avoid misdiagnosis of cardiac wall motion abnormalities.