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Updated: Jul 13, 2026

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Published on: August 15, 2025
Clinical features of temporal tip epidural hematomas
Youichi Yanagawa1, Toshihisa Sakamoto, Yoshiaki Okada
1Department of Traumatology and Critical Care Medicine, National Defense Medical College, Tokorozawa, Saitama, Japan. yanagawa@ndmc.ac.jp
Temporal tip epidural hematomas (EDHs) are associated with specific facial fractures and cranial nerve injuries. These injuries rarely require surgery, and outcomes depend on associated brain lesions.
Area of Science:
- Neurosurgery
- Trauma Surgery
- Neurology
Background:
- Epidural hematomas (EDHs) are a significant cause of traumatic brain injury.
- Temporal tip EDHs are a specific subtype requiring detailed clinical characterization.
Purpose of the Study:
- To elucidate the distinct clinical features of temporal tip epidural hematomas.
- To compare temporal tip EDHs with EDHs in other locations.
Main Methods:
- Retrospective chart review of 53 patients with EDH.
- Comparison of two groups: temporal tip EDH (23 patients) and other EDHs (30 patients).
- Analysis of clinical variables including GCS, blood pressure, ISS, fracture location, cranial nerve injury, surgery, and GOS.
Main Results:
- Temporal tip EDHs were associated with a higher incidence of zygomatic arch or lateral orbital cavity fractures.
- Cranial nerve injury was significantly more frequent in the temporal tip EDH group (26.0% vs. 6.6%).
- Surgery was less frequent for temporal tip EDHs (8.6% vs. 36.6%).
Conclusions:
- Temporal tip EDHs are linked to lateral orbital/zygomatic arch fractures and cranial nerve injuries.
- These hematomas typically do not necessitate surgical intervention.
- Patient outcomes are primarily determined by concurrent intracerebral lesions, similar to EDHs elsewhere.
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