Posey Grace, Grayson Viktoriya, Cardona Juan J, Hanna Joshua, Konschake Marko, Wang Arthur, Wysiadecki Grzegorz, Iwanaga Joe, Dumont Aaron S, Tubbs R Shane
Department of Medicine, Tulane University School of Medicine, New Orleans, USA.
Department of Neurosurgery, Tulane University School of Medicine, New Orleans, USA.
Cureus. 2023 Jan 5;15(1):e33419. doi: 10.7759/cureus.33419. eCollection 2023 Jan.
Background The sphenoparietal sinus (SPS) is implicated in various clinical pathologies, specifically arteriovenous fistulas and venous sinus thrombosis. This study is aimed to better understand this venous structure of the skull base via histological examination. Methods Ten embalmed and latex-injected adult body donors' heads (20 sides) underwent microdissection of the SPS using a surgical microscope. The entire dura on the underside of the lesser wing of the sphenoid bone encompassing the region known as the groove for the SPS was harvested from each body donor and submitted for histological analysis (H&E, Periodic acid-Schiff [PAS], Masson's Trichrome). Five left and five right transverse sinuses were harvested and analyzed histologically as controls. Results A definitive SPS was identified in 14/20 (70%) of the latex-injected body donors. When present, the sinuses were classified as small, medium, or large. Tributaries included the middle meningeal veins, superficial Sylvian vein, and anterior temporal veins. All sinuses drained medially into the cavernous sinus. For the body donors analyzed histologically, 17 (85%) were consistent with a dural venous sinus and not a vein and were observed to have a rich nerve and arterial supply within their walls. The histological findings of the SPS were similar to those seen for the transverse sinus. The combined prevalence for the SPS in gross and histological body donors was 78%. Conclusions Our findings support the presence of SPS in the majority of body donors. To our knowledge, this is the first histological study of the SPS.
背景 蝶顶窦（SPS）与多种临床病理情况有关，特别是动静脉瘘和静脉窦血栓形成。本研究旨在通过组织学检查更好地了解颅底的这种静脉结构。方法 对10具经过防腐处理并注入乳胶的成年尸体供者的头部（20侧），使用手术显微镜对蝶顶窦进行显微解剖。从每个尸体供者身上采集蝶骨小翼下方包含蝶顶窦沟区域的整个硬脑膜，并进行组织学分析（苏木精-伊红染色、过碘酸-希夫染色[PAS]、马松三色染色）。采集5条左侧和5条右侧横窦进行组织学分析作为对照。结果 在14/20（70%）注入乳胶的尸体供者中发现了明确的蝶顶窦。存在时，窦被分为小、中或大。属支包括脑膜中静脉、大脑外侧浅静脉和颞前静脉。所有窦均向内侧汇入海绵窦。对于进行组织学分析的尸体供者，17例（85%）符合硬脑膜静脉窦而非静脉，并且观察到其壁内有丰富的神经和动脉供应。蝶顶窦的组织学表现与横窦相似。在大体解剖和组织学检查的尸体供者中，蝶顶窦的综合患病率为78%。结论 我们的研究结果支持大多数尸体供者中存在蝶顶窦。据我们所知，这是第一项关于蝶顶窦的组织学研究。
