期刊
SURGICAL AND RADIOLOGIC ANATOMY
卷 45, 期 12, 页码 1563-1565出版社
SPRINGER FRANCE
DOI: 10.1007/s00276-023-03248-y
关键词
Superior petrosal sinus; Cerebellar vein; Trigeminal nerve; Internal auditory meatus; Tentorium cerebelli
A previously unreported ring-shaped superior petrosal vein (RS-SPV) was found on the petrosal surface of the right cerebellar hemisphere. It was inserted in the superior petrosal sinus (SPS) above the internal auditory pore and located posterior-lateral to the trigeminal pore. The anterior arm of the venous ring received veins from the pontine surface and continued as a single venous trunk on the cerebellar surface.
BackgroundDandy's superior petrosal vein (SPV) anatomy is highly relevant for neurosurgeons. The SPV drains into the superior petrosal sinus (SPS), closely related to the trigeminal and internal auditory pores.MethodThe archived enhanced MRI files of a male patient were studied.ResultsAn infratentorial ring-shaped (RS) SPV was found on the petrosal surface of the right cerebellar hemisphere. It was inserted in the SPS above the internal auditory pore, postero-lateral to the trigeminal pore. The anterior arm of that venous ring received a delicate supratrigeminal plexus of veins from the pontine surface and continued as a single venous trunk on the cerebellar surface.ConclusionSuch previously unreported RS-SPV is of utmost importance to be identified before subtemporal transtentorial and retrosigmoid approaches for different neurosurgical reasons.
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