Santos E, Larrañaga G, Peláez R, Neve I
Servicio de Radiodiagnóstico, Hospital de Txagorritxu, Vitoria, Spain.
Radiologia. 2010 Sep-Oct;52(5):461-4. doi: 10.1016/j.rx.2010.03.006. Epub 2010 Apr 24.
Dermoid cysts are rare benign tumors of embryonic origin; they account for less than 1% of all intracranial tumors. Rarely, they may rupture and spread their fatty content into the subarachnoid space or lateral ventricles. Dermoid cyst rupture may occur spontaneously or be associated with previous closed head trauma. The clinical presentation can vary. We report a case of ruptured intracranial dermoid cyst after accessory pathway ablation for cardiac arrhythmia in a 54-year-old woman with no relevant neurologic history, and we discuss hypotheses about its etiopathogenic mechanism.
皮样囊肿是一种罕见的胚胎源性良性肿瘤；它们在所有颅内肿瘤中所占比例不到1%。皮样囊肿很少会破裂，并将其脂肪成分扩散到蛛网膜下腔或侧脑室。皮样囊肿破裂可能是自发发生的，也可能与既往的闭合性头部外伤有关。临床表现可能多种多样。我们报告了一例54岁无相关神经病史的女性在进行心律失常旁路消融术后发生颅内皮样囊肿破裂的病例，并讨论了其发病机制的假说。
