求助 !!！ Orbit MRI 显示 爸爸 左眼 视神经周围 长了一个Mass ，严重么？

爸爸今年 76岁。 3/18/2022 因为剧烈头晕，去了ER。ER做了三个 MRI， Brain/Neck/Orbit，都显示 他的左眼 视神经 周围长了一个 1.2 X 1.1 cm 的mass。现在他的左眼视力模糊，已经有2个月左右。 他已经去看过 neurologist(神经内科), 该医生说 他不能handle, 他给refer to UCSF Neurology Clinic。但是UCSF Neurology最早的appointment 也要等到 10月份。 

请问群里的专家， 我爸 左眼 到底是 长了个 什么东西？ 良性/恶性？ 血管瘤？ 这个情况 危急 么？ 会有什么危险? (左眼失明，血管瘤破裂颅内出血, etc？ ) 

我在考虑是 否需要  带我爸 回国去看医生。 但是现在国内隔离政策，估计也要等好多天，才能看上医生。

万分感谢！！！！ 

MRI BRAIN WO IV CONTRAST - Details

IMPRESSION: 

1. No acute intracranial abnormality.

2. No flow-limiting stenosis or aneurysm.

3. Left intraconal T2 hyperintense well circumscribed rounded mass measuring 1.2 x 1.1 cm without associated ASL hyperperfusion abutting the optic nerve and inferior rectus muscle. Findings likely represent a benign lesion such as venous malformation. Recommend dedicated MRI of the orbits with contrast for further assessment.

4. Left sphenoid sinus mucosal thickening and partial opacification with T2 hyperintense and T1 hypointense material, likely representing fungal colonization.       

MR NECK ANGIOGRAPHY WO IV CONTRAST - Details                         

IMPRESSION:

1. No acute intracranial abnormality.

2. No flow-limiting stenosis or aneurysm.    

3. Left intraconal T2 hyperintense well circumscribed rounded mass measuring 1.2 x 1.1 cm without associated ASL hyperperfusion abutting the optic nerve and inferior rectus muscle. Findings likely represent a benign lesion such as venous malformation. Recommend dedicated MRI of the orbits with contrast for further assessment.                        

4. Left sphenoid sinus mucosal thickening and partial opacification with T2 hyperintense and T1 hypointense material, likely representing fungal colonization.                

MR ORBIT W AND WO IV CONTRAST - Details 

IMPRESSION:            

1. Enhancing left intraconal T2 hyperintense well circumscribed rounded mass abutting the optic nerve and inferior rectus muscle. Findings likely represent a benign lesion such as a vascular cavernous malformation.     

2. Normal MRI appearance of the right orbit.