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DOTATATE Case: Meningioma

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This Dote pet CT was done on a 70-year-old female

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for staging of a neuroendocrine tumor of the pancreas

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that had been resected.

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In this case, we see several areas of abnormality.

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I have changed a little bit the window

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so we can appreciate the areas

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of abnormal uptake in the liver as well as, uh,

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abnormal uptake in the left supraclavicular region.

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But I want to draw your attention to the area

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of very intense uptake in the head that, uh,

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has much greater uptake than the rest of the lesions

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localizes two kind of oval

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hyperdense lesion in the right

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frontal calvarium.

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When we look at these lesion on coronal, we can see

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that each of extra axial location

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when, and we see this, one of the possibilities we have

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to raise is that this is a meningioma.

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Meningioma are known to express

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somatostatin receptors and

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therefore are very often identified incidentally,

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when we are doing a dotatate pit for another reason.

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If it's not clear, because the lesion is small

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and we are lacking a spatial resolution, we can always ask

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for additional imaging of the head to help confirm

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and distinguish this pitfall from a malignant finding

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like a metastasis, when we change to bone window,

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we can see that the lesion scene does not create any changes

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on the inner table, which is another sign

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that this is an extra axial lesion rather than an

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osseous lesion.

Report

Faculty

Elisa Franquet Elia, MD

Assistant Professor of Radiology

UMass Chan Medical School

Tags

Response and assessment

PET/CT DOTATATE

PET

Other Systems

Oncologic Imaging

Nuclear Medicine

Neuroendocrine

Neoplastic

General Oncologic Imaging Concepts