ArticleCureus2025
Emergency Embolization of Hemorrhagic Greater Superficial Petrosal Nerve (GSPN) Schwannoma: A Rare Case of Intracranial Hemorrhage.
Article in Cureus, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Greater superficial petrosal nerve (GSPN) schwannomas are exceptionally rare and have not been previously reported to present with acute hemorrhage. In contrast, hemorrhagic vestibular and trochlear schwannomas have been described, often presenting with abrupt neurological symptoms. We report a case of a 41-year-old woman who presented with a sudden-onset headache and vomiting. CT revealed a hyperdense extra-dural lesion in the right middle cranial fossa, arising from an enlarged GSPN hiatus, with a subdural hematoma along the tentorium and fronto-parieto-temporal convexity (maximum thickness: 5 mm). MRI demonstrated a 25 × 20 mm extra-axial mass with heterogeneous T2 signal and perilesional edema. CT angiography showed intense enhancement, and digital subtraction angiography revealed a robust tumor blush with active contrast extravasation from the petrous branch of the middle meningeal artery. Super-selective embolization using 150-250 μm polyvinyl alcohol (PVA) particles achieved complete devascularization. Histopathological confirmation was not obtained, as the patient opted for conservative management; diagnosis was based on characteristic imaging features and precise anatomical localization. Post-embolization, the patient's symptoms resolved, and she was discharged neurologically intact by day 7. She remained stable at the three-month follow-up without symptom recurrence. This case represents the first reported instance of a hemorrhagic GSPN schwannoma. It underscores the importance of considering rare bleeding neural tumors in acute headache presentations and demonstrates that trans-arterial embolization can offer immediate hemostasis and clinical stabilization, providing a critical window for safe transition to planned surgical excision. This strategy may serve as a valuable adjunct in the management of similar cases of other hypervascular cranial nerve tumors presenting with acute hemorrhage.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.