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An Incidental Detection of Breast Cancer Osteolytic Bone Metastasis Using a 99m Tc-TRODAT-1 SPECT Scan

  • 0From the Department of Nuclear Medicine, Hsinchu Mackay Memorial Hospital, Hsinchu, Taiwan.
Clinical Nuclear Medicine +

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August 28, 2024

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August 28, 2024

View abstract on PubMed

Summary

This summary is machine-generated.

This case report details a 76-year-old woman with suspected Parkinson disease. Unexpectedly, SPECT scans revealed bone metastasis from breast cancer, not solely neurodegeneration.

Area Of Science

  • Neurology
  • Nuclear Medicine
  • Oncology

Background

  • Parkinson disease diagnosis can be complex, especially in older adults presenting with motor symptoms like bradykinesia and gait instability.
  • Dopamine transporter imaging using 99m Tc-TRODAT-1 SPECT is a tool used to evaluate nigrostriatal integrity.

Observation

  • A 76-year-old woman presented with symptoms suggestive of Parkinson disease.
  • 99m Tc-TRODAT-1 SPECT imaging showed symmetrically decreased bilateral nigrostriatal system uptake.
  • Increased uptake of 99m Tc-TRODAT-1 in bilateral frontal and left temporal bones was noted.

Findings

  • The SPECT findings of decreased nigrostriatal uptake could indicate normal aging or atypical parkinsonism.
  • Review of bone scan and CT images revealed osteolytic lesions corresponding to the areas of increased uptake.
  • These lesions were indicative of bone metastasis from breast cancer.

Implications

  • This case highlights the importance of considering non-neurological pathologies when interpreting neuroimaging findings.
  • It underscores the need for comprehensive diagnostic workups to differentiate between neurodegenerative diseases and metastatic disease.
  • Integrated imaging approaches are crucial for accurate diagnosis and patient management.