Case ReportsDouble-loculated Calcification Chronic Subdural Hematoma Case Report and Literature ReviewLi, Xinwei MD; Wan, Yingfeng MSc; Qian, Cong MD; Yang, Shuxu PhD, MD; Zhu, Xianli MD; Wang, Yirong MD Author Information Department of Neurosurgery, Sir Run Run Shaw Hospital, Medical College of Zhejiang University, Hangzhou, Zhejiang, P.R. China The authors declare no conflict of interest. Reprints: Yirong Wang, MD, No. 3 QingChun Road East, Hangzhou, Zhejiang, 310016, P.R. China (e-mail: [email protected]). Neurosurgery Quarterly: May 2015 - Volume 25 - Issue 2 - p 167-173 doi: 10.1097/WNQ.0000000000000016 Buy Metrics Abstract Calcified chronic subdural hematoma (CCSDH) is a rare pathologic entity and, until recently, has been only published as case reports. We first present a patient with a double-loculated CCSDH who obtained good reexpansion after craniotomy to remove the thick calcified inner membrane and hematoma. In addition, we reviewed 46 cases in literature and conducted a summary about the incidence, clinical characteristics, radiologic findings, and therapeutic strategies of CCSDH. Surgical treatment for CCDSH with a sudden neurological deterioration is feasible and often results in neurological improvement; however, a crucial consideration was required in asymptomatic CCSDH. It is expected that CCSDH will be rarer in the future. Copyright © 2015 Wolters Kluwer Health, Inc. All rights reserved.