PDF(Pubmed)
Abstract：
Background Interthalamic adhesion (ITA) or massa intermedia is a midline rod-like neural structure interconnecting the medial surfaces of two thalami. Its absence is considered as a midline defect associated with schizophrenia spectrum disorder. The present study aimed to determine the prevalence, location, and dimensions of the ITA in South Asian brains. Materials and Methods One hundred midsagittal sections of adult cadaveric brains were examined for the presence or absence of ITAs, their location about the lateral wall of the third ventricle, and their dimensions. Results ITA was found in 86 sections. In two cases, it was double. There was no significant relationship between the incidence of ITAs and sex ( p > 0.05). The ITA was most commonly located in the anterosuperior quadrant. The horizontal diameter was 4.61 ± 1.17 mm, and the vertical diameter was 3.10 ± 0.78 mm. In all cases, the horizontal diameter was longer than the vertical. The average area of the ITA was significantly larger in females (17.56 ± 5.26 mm 2 ) than in males (13.62 ± 5.22 mm 2 ) ( p = 0.025). Conclusion Presence of ITA is common in South Asian brains, with usual location in the anterosuperior quadrant of the lateral wall of the third ventricle. The cross-sectional area of the ITA was significantly larger in females than in males. No correlation was found between the surface area of the ITA and the length of the third ventricle.
摘要：
背景技术丘脑间粘连(ITA)或中间massa是将两个丘脑的内侧表面互连的中线杆状神经结构。它的缺失被认为是与精神分裂症谱系障碍相关的中线缺陷。本研究旨在确定患病率，location,以及南亚大脑中ITA的尺寸。材料和方法检查了一百个成年尸体大脑的矢状面中切片是否存在ITAs，它们在第三脑室侧壁上的位置，和它们的尺寸。结果86个切片中发现ITA。在两种情况下，它是两倍。ITAs的发生率与性别无显著关系(p>0.05)。ITA最常见于前上象限。水平直径为4.61±1.17mm,垂直直径为3.10±0.78mm。在所有情况下,水平直径比垂直直径长。女性ITA的平均面积（17.56±5.26mm2）明显大于男性（13.62±5.22mm2）（p=0.025）。结论ITA的存在在南亚人群中很常见,通常位于第三脑室侧壁的前上象限。女性的ITA横截面积明显大于男性。在ITA的表面积和第三脑室的长度之间没有发现相关性。
