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| Imaging findings of brain injury caused by hydrogen sulfide poisoning |
| TANG Dai-di, WANG Chun-yan, DAI Ying-jun, MA Jin-lin, ZHANG Hong-tao, SHENG Fu-geng |
| The Fifth Medical Center of Chinese PLA General Hospital, Beijing 100071, China |
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Abstract Objective: To explore the CT and MRI imaging findings of brain injury caused by hydrogen sulfide gas poisoning in order to improve the understanding and diagnosis of brain injury caused by hydrogen sulfide gas poisoning. Methods: The imaging data of 12 patients with hydrogen sulfide gas poisoning in our hospital from January 2016 to November 2018 were analyzed retrospectively. The density and distribution of lesions and the characteristics of T2WI, T1WI, DWI and T2-Flair signals were compared. Results: Both CT and MRI showed multiple and symmetrical distribution of lesions in the brain. CT showed symmetrical low density shadow, mainly distributed in the basal ganglia, around the lateral ventricle and in the center of the semicircular circle. Among them, two cases with brain edema showed extensive decreased density of brain parenchyma and unclear boundary of skin and medulla on CT. The range of lesions found by MRI was larger than that by CT. The lesions were symmetrical and distributed symmetrically. Symmetrical long T1 and T2 signals were found in bilateral frontoparietal white matter, semi-oval center, periventricular nucleus and basal ganglia nucleus. DWI and T2-Flair images showed symmetrical high signal intensity. In only one patient, the lesion was localized in the basal ganglia, showing slightly longer T1 and T2 signals in the head of the caudate nucleus and lenticular nucleus, hyperintense on T2-Flair and hyperintense on DWI. Conclusion: The imaging findings of CT and MRI are of great value in the diagnosis and follow-up of brain injury caused by hydrogen sulfide poisoning. The symmetrical density of CT and abnormal signal of MRI in basal ganglia and extensive brain edema are characteristic.
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Received: 30 September 2019
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