表皮样囊肿向皮样囊肿的演变：胚胎学解释及放射学与病理学的相关性。
Evolution of epidermoid cyst into dermoid cyst: Embryological explanation and radiological-pathological correlation.
作者信息
Balasundaram Parthiban, Garg Ajay, Prabhakar Anuj, Joseph Devarajan Leve S, Gaikwad Shailesh B, Khanna Gaurav
机构信息
1 Department of Neuroimaging and Interventional Neuroradiology, All India Institute of Medical Sciences, India.
2 Department of Pathology, All India Institute of Medical Sciences, India.
出版信息
Neuroradiol J. 2019 Apr;32(2):92-97. doi: 10.1177/1971400918821086. Epub 2019 Jan 3.
Abstract
Intracranial dermoid and epidermoid cysts are usually considered to be two different entities in the radiological and surgical literature. Epidermoid cysts are classically off midline in location, isointense to cerebrospinal fluid on T1 and T2-weighted images and have restricted diffusion, whereas dermoid cysts are classically midline in location, have T1-hyperintense regions due to the presence of fat and show facilitated diffusion. We report a case of radiological epidermoid cyst in baseline imaging, which evolved into a radiological dermoid cyst over time, and explain this unique occurrence with a review of the embryology and histopathogenesis of these cysts.
摘要
颅内皮样囊肿和表皮样囊肿在放射学和外科学文献中通常被认为是两种不同的实体。表皮样囊肿在位置上通常偏离中线，在T1加权和T2加权图像上与脑脊液等信号，且扩散受限，而皮样囊肿在位置上通常位于中线，由于含有脂肪而有T1高信号区域，并显示扩散易化。我们报告一例在基线影像学检查时为放射学表皮样囊肿的病例，该病例随时间演变为放射学皮样囊肿，并通过回顾这些囊肿的胚胎学和组织发病机制来解释这一独特现象。
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