10. Doğramaci Y, Kalaci A, Sevinç TT, Yanat AN. Intraneural hemangioma of the median nerve: A case report. J Brachial Plex Peripher Nerve Inj 2008;3:5 11. Saito S, Suzuki Y (2010) Schwannomatosis affecting all three major nerves in the same upper extremity. J Hand Surg [Eu] 35:592–594 12. Marom, E., Helms, C. Fibrolipomatous hamartoma: pathognomonic on MR imaging. Skeletal Radiol 28, 260–264 (1999). ACKNOWLEDGMENTS Mitchell Ta is a PGYI intern in the Department of Internal Medicine at Harbor-UCLA. Ahmed T. Rashad MD is a PGYV Resident in the Department of Radiology at Tulane University School of Medicine in New Orleans, La. Neel Dewan Gupta MD is a clinical and academic musculoskeletal radiologist in New Orleans and serves as a clinical assistant professor within the Department of Radiology at the Tulane University Medical Center. Vishnupriya Kuchana MD is PGYIII Resident in the Department of Radiology at Tulane University School of Medicine in New Orleans, La. Jeremy Nguyen MD, FACR is a clinical radiology professor within the Department of Radiology at the Tulane University Medical Center. ■
It is important to consider a broad differential diagnosis due to the rarity of intraneural hemangiomas. Differential diagnosis includes intraneural schwannoma, glomus tumor, angioleiomyoma, hamartoma, and hematoma. While both schwannomas and hemangiomas may involve peripheral nerves, schwannomas on T2-weighted MRI sequences often demonstrate heterogenous signal with peripheral enhancement and central low signal – a typical target sign 5 . Glomus tumors and angioleiomyomas, on the other hand, are usually hypervascular homogenous solid masses with sharp margins. Marom and Helms described a case of a fibrolipomatous hamartoma, which characteristically demonstrates serpiginous low signal surrounded by evenly distributed fat 6 . REFERENCES 7. Châtillon CE, Guiot MC, Jacques L. Lipomatous, vascular, and chondromatous benign tumors of the peripheral nerves: representative cases and review of the literature. Neurosurg Focus 2007;22:E18. 8. Ravanbod H, Motififard M, Aliakbari M, Zolfaghari M, Hatami S. Intraneural cavernous hemangioma: a rare case of extrafascicular left ulnar nerve tumor. Am J Blood Res. 2021;11(1):72-76. Published 2021 Feb 15. 9. Bacigaluppi S., Fiaschi P., Prior A., Bragazzi N.L., Merciadri P., Gennaro S. Intraneural haemangioma of peripheral nerves. Br. J. Neurosurg. 2018;14:1–7. Mar.
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J LA MED SOC | VOL 175 | FALL 2023
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