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CT and MR imaging of the "target sign" in metastatic brain disease
1Department of Radiology, Niigata University School of Medicine, 1-757 Asahimachi-dori, Niigata, 951-8510 Japan.
European Radiology
|February 9, 2000
Abstract:
The "target sign" is a common finding in granulomatous infection. A case with the target sign in metastatic brain tumor from small cell lung carcinoma is reported.
Insights
The target sign, a common indicator of granulomatous infection, was observed in a rare case of metastatic brain tumor. This finding highlights an unusual presentation in small cell lung carcinoma.
Area of Science:
- Radiology
- Oncology
- Pathology
Background:
- The target sign is a characteristic imaging finding typically associated with granulomatous infections.
- Its presence in neoplastic conditions is uncommon, making it a diagnostic challenge.
Observation:
- A case study detailing a patient with metastatic brain tumor originating from small cell lung carcinoma is presented.
- The imaging revealed the distinct target sign within the brain metastases.
Findings:
- This report documents the unusual occurrence of the target sign in a metastatic brain tumor.
- The finding was associated with metastatic small cell lung carcinoma, a rare presentation.
Implications:
- This case expands the differential diagnosis for the target sign in neuroimaging.
- Recognizing this sign in the context of small cell lung carcinoma can aid in earlier diagnosis and treatment planning.