Littrell Laurel A, Leutmer Patrick H, Lane John I, Driscoll Colin L W
Department of Diagnostic Radiology, Mayo Clinic/Mayo Foundation, 200 First Street SW, Rochester, MN 55905, USA.
AJNR Am J Neuroradiol. 2004 Mar;25(3):491-3.
A 70-year old man with a 15-year-history of chronic daily Valsalva maneuvers for left ear congestion presented with worsening vertigo and calvarial (occipitoparietal) and upper cervical hyperpneumatization. With continued frequent Valsalva maneuvers, subsequent studies demonstrated increased pneumatization with extension of air into the epidural space, causing mass effect on the left parietal lobe. Four months after discontinuing the habitual Valsalva maneuvers, CT demonstrated resorption of the epidural air and partial regression of the calvarial pneumatization.
一名70岁男性,有15年因左耳充血而每日进行瓦尔萨尔瓦动作的病史,出现眩晕加重以及颅骨(枕顶)和上颈椎过度气化。随着持续频繁进行瓦尔萨尔瓦动作,后续研究显示气化增加,空气延伸至硬膜外间隙,对左侧顶叶产生占位效应。在停止习惯性瓦尔萨尔瓦动作4个月后,CT显示硬膜外气体吸收,颅骨气化部分消退。