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Abstract：
Background and Objectives: Typically, the external carotid artery (ECA) sends off separate anterior branches: the superior thyroid, lingual, and facial arteries. These could, however, form common trunks: thyrolinguofacial, linguofacial (LFT), or thyrolingual. Although known, the LFT variant was poorly detailed previously, and most authors just counted the variant. We aimed to demonstrate the individual anatomical possibilities of the LFT on a case-by-case basis. Materials and Methods: 150 archived angioCT files were used. After applying inclusion and exclusion criteria, 147 files of 86 males and 61 females were kept for this study. Results: In 34/147 cases, LFTs were found (23.12%). Bilateral LFTs were found in 13/34 cases (38.24%) and unilateral LFTs in 21/34 (61.76%) cases. Forty-seven LFTs were thus identified and further studied for different variables. Regarding the vertical topography of LFT origin, type 1a (suprahyoid and infragonial) was found in 28 LFTs (59.57%), type 1b (suprahyoid and gonial) was found in eight LFTs (17.02%), type 3 (suprahyoid and supragonial) was found in two LFTs (4.25%), type 2 (hyoid level of origin) in eight LFTs (17.02%), and type 3 (infrahyoid origin) in just one LFT (2.12%). Types of the initial course of the LFT were determined: type I, ascending, was found in 22/47 LFTs; type II, descending, in 12/47 LFTs; and type III, transverse, in 13/47 LFTs. Regarding the orientation of the first loop of the LFT, 23/47 LFTs had no loop, 4/47 had anterior loops, 1/47 had a posterior loop, 5/47 had superior loops, 5/47 had inferior loops, and 9/47 had medial loops. The position of the LFT relative to the ECA was classified as medial, anterior, or antero-medial. An amount of 12/47 LFTs were anterior to the ECA, 22/47 were antero-medial, 10/47 were medial, 2/47 were inferior, and 1/47 was lateral. Regarding their general morphology, 23/47 LFTs had a rectilinear course, 22/47 had loops, and 2/47 were coiled. A case-by-case presentation of results further demonstrated the diversity of the LFT. Conclusions: In conclusion, the morphology and topography of the LFT are individually specific and unpredictable. It can be anticipated case-by-case by surgeons on CT or MR angiograms.
摘要：
背景和目标：通常，颈外动脉（ECA）发出单独的前分支：甲状腺上，语言,和面部动脉.这些可以，然而,形成常见的树干：甲状腺舌面，舌面部(LFT),或甲状腺。虽然已知，LFT变体以前的细节很差，大多数作者只是计算了变体。我们旨在逐案证明LFT的个体解剖学可能性。材料和方法：使用150个存档的血管CT文件。在应用纳入和排除标准后，本研究保留了147份86名男性和61名女性的档案。结果:34/147例中,发现了LFTs(23.12%)。13/34例(38.24%)为双侧LFTs，21/34例(61.76%)为单侧LFTs。因此，确定了47个LFT，并进一步研究了不同的变量。关于LFT原点的垂直地形，在28例LFTs中发现了1a型（舌骨上和骨下）（59.57％），在八个LFT中发现了1b型（舌骨上和性腺）（17.02％），在两个LFT中发现了3型（舌骨上和上）（4.25％），8个LFT中的2型（舌骨起源水平）（17.02%），和类型3（舌骨下起源）仅在一个LFT（2.12％）。确定了LFT初始过程的类型：I型，升序，在22/47LFTs中发现；II型，下降，在12/47LFTs中；和III型，横向,在13/47LFT中。关于LFT的第一个循环的方向，23/47LFT没有循环，4/47有前环，1/47有一个后环，5/47有优越的环路，5/47有劣质环，和9/47有内侧环。LFT相对于ECA的位置被归类为内侧，前,或者前内侧。在ECA之前有12/47的LFT，22/47是前内侧，10/47是中间的，2/47是劣质的，1/47是横向的。关于它们的一般形态，23/47LFTs有一个直线路线，22/47有循环，和2/47是盘绕的。逐例展示结果进一步证明了LFT的多样性。结论：总之，LFT的形态和形貌是个别特定的和不可预测的。外科医生可以在CT或MR血管造影上逐例预测。
