Fuentes Angelica M, Jane John A
Department of Neurosurgery, University of Virginia, Charlottesville, VA, USA.
Department of Neurosurgery, Virginia Tech Carilion School of Medicine, Carilion Clinic, Roanoke, VA, USA.
Childs Nerv Syst. 2024 Aug;40(8):2637-2640. doi: 10.1007/s00381-024-06464-y. Epub 2024 May 18.
Intracranial arachnoid cysts are benign collections of cerebrospinal fluid that are often asymptomatic and discovered incidentally. An interhemispheric location of these lesions is rare, with only a few such cases reported in the literature. Though spontaneous regression of arachnoid cysts has been described in other locations, to date this phenomenon has not been reported in interhemispheric fissure cysts.
In this report, we describe a patient with a large, multiloculated interhemispheric arachnoid cyst diagnosed on prenatal ultrasound. She did not exhibit neurologic deficits or signs of increased intracranial pressure and was observed with serial imaging. After several years of observation, imaging revealed spontaneous and progressive decrease in the cyst size.
We illustrate a case of regression of an interhemispheric arachnoid cyst in a pediatric patient. To our knowledge, this is the first reported case of spontaneous shrinkage of an arachnoid cyst in this location. Although the current presentation is rare, this reporting adds to the current understanding of natural history of arachnoid cysts and provides an example of radiographical improvement without intervention of a cyst located within the interhemispheric fissure.
颅内蛛网膜囊肿是脑脊液的良性聚集，通常无症状，多为偶然发现。这些病变位于大脑半球间的情况罕见，文献中仅有少数此类病例报道。尽管在其他部位曾有蛛网膜囊肿自发消退的描述，但迄今为止，大脑半球间裂囊肿尚未见有此现象的报道。
在本报告中，我们描述了一名产前超声诊断为巨大、多房性大脑半球间蛛网膜囊肿的患者。她未表现出神经功能缺损或颅内压升高的体征，并通过系列影像学检查进行观察。经过数年观察，影像学显示囊肿大小自发且逐渐减小。
我们展示了一例小儿大脑半球间蛛网膜囊肿消退的病例。据我们所知，这是该部位蛛网膜囊肿自发缩小的首例报道病例。尽管目前这种情况罕见，但本报告增加了对蛛网膜囊肿自然病程的当前认识，并提供了一个位于大脑半球间裂的囊肿未经干预而影像学改善的实例。
