We describe a patient who suffered reversible hypoxic brain injury. The initial MRI taken 3.5 hours after asphyxiation showed an abnormal lesion on DWI, but he recovered completely from coma. The presence of cytotoxic edema in the acute stage may not necessarily indicate a poor prognosis.
WeissNGalanaudDCarpentierA. Clinical review: prognostic value of magnetic resonance imaging in acute brain injury and coma. Critical Care. 2007; 11: 230–231.
2.
ElsThKassubekJKubalekR. Diffusion-weighted MRI during early global cerebral hypoxia: a predictor for clinical outcome?Acta Neurol Scand. 2004; 110: 361–367.
3.
WuOSorensenAGBennerT. Comatose patients with cardiac arrest: Predicting clinical outcome with diffusion-weighted MR imaging. Radiology. 2009; 252: 173–181.
4.
GotoYWatayaTArakawaY. Magnetic resonance imaging findings of postresuscitation encephalopathy: sequential change and correlation with clinical outcome. Noshinkei. 2001; 53 (6): 535–540.
5.
KonakaKMiyashitaKNaritomiH. Changes in diffusion-weighted magnetic resonance imaging findings in the acute and subacute phases of anoxic encephalopathy. Case report. J Stroke Cerebrovasc Dis.2007; 16 (2): 82–83.
6.
ArbelaezACastilloMMukherjiSK. Diffusion-weighted MR imaging of global cerebral anoxia: Am J Neuroradiol. 1999; 20: 999–1007.
7.
MimuraIInoueCFujitaT. A case of hypoxic encephalopathy with unilateral laminar necrosis. Clin Neurol. 2006; 46: 342–345.
8.
ArishimaHHosodaTHashimotoN. Hypoxic ischemic encephalopathy with atypical findings on CT and MR imaging: Two case reports. Brain Nerve. 2009; 61 (7): 874–879.
9.
FiehlerJFothMKucinskiT. Severe ADC decreases do not predict irreversible tissue damage in humans. Stroke. 2002; 33: 79–86.
