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Case Reports
. 2022 Feb 1;47(2):e165-e166.
doi: 10.1097/RLU.0000000000003929.

Intracavernous Schwannoma Characterized With 18F-FDG, 68Ga-DOTATOC, and 18F-Choline PET

Julien Farce  1 , Isabelle Lecouillard  2 , Béatrice Carsin Nicol  3 , Maxime Bretonnier  4 , Antoine Girard  1
Affiliations
Case Reports

Intracavernous Schwannoma Characterized With 18F-FDG, 68Ga-DOTATOC, and 18F-Choline PET

Julien Farce et al. Clin Nucl Med. .

Abstract

We report the case of a 75-year-old man with history of prostate cancer whose left intracavernous lesion was successfully characterized by 3 PETs performed successively with different tracers. This poorly characterized tumor was initially discovered on an MRI conducted to investigate an acute diplopia and slowly growing during follow-up. On 18F-FDG PET, the lesion showed no significant uptake, and no extracranial lesion was found nor did it have increased 68Ga-DOTATOC uptake. Finally, this tumor displayed a high 18F-choline uptake, and no extracranial lesion was revealed with this tracer. The diagnosis of schwannoma without malignancy criterion was proven by biopsy.

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Conflict of interest statement

Conflicts of interest and sources of funding: none declared.

References

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