J Korean Neurotraumatol Soc.  2011 Apr;7(1):47-49. 10.13004/jknts.2011.7.1.47.

Rapid Spontaneous Resolution of Traumatic Acute Subdural Hematoma

  • 1Department of Neurosurgery, Gachon University of Medical & Science, Gil Medical Center, Incheon, Korea. phoenix3070@naver.com


Rapid spontaneous resolution of traumatic acute subdural hematoma (SDH) is a rare and unexpectable phenomenon. A 67-year-old man presented with confused mental state after falling down. Initial brain computed tomography (CT) scan revealed an acute SDH with thickness of approximately 10mm, which was managed conservatively. Six days after conservative management, follow-up CT showed complete resolution of the hematoma. The other case of 61-year-old woman was an acute traumatic SDH after falling out of wheelchair that reduced spontaneously. We report two cases of traumatic acute SDH with spontaneous reduction and possible mechanism of spontaneous resolution of acute SDH with relevant review of the literature.


Rapid resolution; Acute subdural hematoma

MeSH Terms

Follow-Up Studies
Hematoma, Subdural, Acute


  • FIGURE 1 Brain CT images of case 1. A: Initial brain CT scan on admission shows an acute SDH with a maximal thickness of approximately 10 mm. B: A follow-up brain CT scan 3 hours after the initial scan shows a resolution of the SDH. C: 6 days later after admission, a follow-up brain CT image revealed a complete resolution of acute SDH. SDH: subdural hematoma.

  • FIGURE 2 Brain CT images of case 2. A: Initial brain CT scan revealed an acute SDH with a maximal thickness of approximately 17 mm in the right convexity and a midline shift of 18 mm. B: A follow-up brain CT image 11days after the initial scan shows a resolution of SDH. SDH: subdural hematoma.


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