Purpose: to improve the knowledge of the CT findings of isodense subdural hematoma (ISH).

目的：提高对等密度硬膜下血肿(ish)CT征象认识。

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On CT, ENB tends to be isodense or hyperdense compared to the surrounding soft tissues. There is moderate contrast enhancement. Bone erosion and remodeling are common.

ENB与周围软组织相比，通常表现为等或高密度，增强扫描中度强化，常可见骨质侵蚀、塑形。

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Delayed scan, the hypodense edema ring enhanced and became isodense, or the abscess enhanced diffusely, the lesions became smaller and the colliquative necrosis area more obvious.

延时，脓肿周围低密度水肿环可强化为等密度，或脓肿内部强化，病变范围缩小，液化坏死区更显明显。

youdao

Delayed scan, the hypodense edema ring enhanced and became isodense, or the abscess enhanced diffusely, the lesions became smaller and the colliquative necrosis area more obvious.

延时，脓肿周围低密度水肿环可强化为等密度，或脓肿内部强化，病变范围缩小，液化坏死区更显明显。

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