181.A Case Review Series : Case1Optic Chiasm Cavernoma视交叉海绵状血管瘤
每天朗读一段医学影像学英语文章
Case1
Optic Chiasm Cavernoma
Clinical
May be Asymptomatic (>30% become symptomatic, usually in 20s or 30s)
-Acute: Visual disturbance, subarachnoid hemorrhage, seizures
-Chronic: Progressive visual loss, headache, endocrine dysfunction
Behave as all cavernomas
-Hemorrhage rate of all cavernomas:
0.7-1.7%/lesion/year
-20% familial, autosomal dominant
病例回顾1---视交叉海绵状血管瘤】
临床表现:可能无症状(超过30%的患者有症状,通常为20-40岁的患者)。
急性---视物模糊、蛛网膜下腔出血、癫痫发作。
慢性---进行性失明、头痛、内分泌功能紊乱。
对所有海绵状血管瘤来说,每年发病中的0.7-1.7%有出血表现。20%为家族性,常染色体显性。
Imaging
CT:
Well-delineated hyperdense mass +/- calcification, negative in up to 50%
MRI:
Popcorn appearance on T1 and T2 common, hypointense hemosiderin ring on T2, blooming on GRE, minimal/no enhancement, look for associated developmental venous anomaly
影像表现:
CT:边界清楚的高密度肿块,伴或不伴钙化,无钙化约占50%。
MRI:T1T2平扫上为爆米花样改变,T2可见低信号含铁血黄素环,GRE上可见开花征,稍有/无强化,同时注意有无神经异常。
DDx:
AVM, aneurysm, optic glioma, craniopharyngioma, pituitary apoplexy
Tx:
-Somewhat controversial; 50% stable vision and 50% progressive visual loss
With resection (partial or complete): 87% improved vision
-Stereotactic radiation therapy proposed but not well documented; anterior optic pathway sensitive to radiation.
【A Case Review Series : Case1
Optic Chiasm Cavernoma 病例回顾1---视交叉海绵状血管瘤】
临床表现:可能无症状(超过30%的患者有症状,通常为20-40岁的患者)。
急性---视物模糊、蛛网膜下腔出血、癫痫发作。
慢性---进行性失明、头痛、内分泌功能紊乱。
对所有海绵状血管瘤来说,每年发病中的0.7-1.7%有出血表现。20%为家族性,常染色体显性。
Clinical
May be Asymptomatic (>30% become symptomatic, usually in 20s or 30s)
-Acute: Visual disturbance, subarachnoid hemorrhage, seizures
-Chronic: Progressive visual loss, headache, endocrine dysfunction
Behave as all cavernomas
-Hemorrhage rate of all cavernomas:
0.7-1.7%/lesion/year
-20% familial, autosomal dominant
影像表现:
CT:边界清楚的高密度肿块,伴或不伴钙化,无钙化约占50%。
MRI:T1T2平扫上为爆米花样改变,T2可见低信号含铁血黄素环,GRE上可见开花征,稍有/无强化,同时注意有无神经异常。
Imaging
CT:
Well-delineated hyperdense mass +/- calcification, negative in up to 50%
MRI:
Popcorn appearance on T1 and T2 common, hypointense hemosiderin ring on T2, blooming on GRE, minimal/no enhancement, look for associated developmental venous anomaly
鉴别诊断:动静脉畸形、动脉瘤、视神经胶质瘤、颅咽管瘤、垂体性脑卒中。
DDx:
AVM, aneurysm, optic glioma, craniopharyngioma, pituitary apoplexy
Tx:
-Somewhat controversial; 50% stable vision and 50% progressive visual loss
With resection (partial or complete): 87% improved vision
-Stereotactic radiation therapy proposed but not well documented; anterior optic pathway sensitive to radiation.
治疗:尚有争议,50%视力稳定、50%进行性失明。
行病灶切除(部分/完全切除):87%患者视力得到改善。
也有人提出立体定位放射疗法,但没有详细记录。前视神经通路对射线敏感。
Notes:
1. Optic Chiasm [ˈɑ:ptɪk] ['kaɪæzəm] 视交叉
2. Cavernoma [kævə'noʊmə] n. 海绵状(血管)瘤
3. subarachnoid [ˌsʌbə'ræknɔɪd] adj. 蛛网膜下的
4. seizure ['si:ʒə] 癫痫
5. endocrine [ˈendəkrɪn] adj. 内分泌(腺)的,激素的
6. hemosiderin [ˌhi:moʊ'sɪdərɪn] n. 含血铁黄素
7. aneurysm [ˈænjəˌrɪzəm] n. 动脉瘤
8. glioma [glaɪ'oʊmə] n. 神经胶质瘤
9. craniopharyngioma ['kreɪnɪoʊfəˌrɪndʒɪ'oʊmə] n. 颅咽管瘤
10. pituitary [pɪˈtu:əteri] n.(脑)垂体
11. apoplexy [ˈæpəˌplɛksi] n. 中风; 卒中
12. Stereotactic [,stɪərɪo'tæktɪk] adj. 立体定位的;趋实体性
来源:每天朗读一段医学影像学英语文章
圈主
深圳市人民医院放射科副主任医师杨敏洁