417.Multiple cavernomas

Figure 2A. Axial T2-weighted FSE image of the brain.

A high-T2-signal lesion with a low-T2-signal rim is identified in the right frontal lobe. The other scattered punctuate foci of low T2 signal in the bilateral cerebral hemispheres are difficult to appreciate.

Figure 2B. Axial T2-weighted GRE sequence of the brain.

The lesion in the right frontal lobe is again identified. The low-T2-signal rim of the lesion is more pronounced. Additionally, multiple punctuate low-T2-signal foci are distributed diffusely throughout the brain.

Diagnosis:  Multiple cavernomas.

Clinical  Discussion:

The T2 bright lesion with a low-T2-signal rim in the right frontal lobe is characteristic for a cavernoma. Cavernomas chronically bleed and as a result have a characteristic hemosiderin ring. As shown in this case, cavernomas are frequently multiple.

Notes:

1. cavernoma /kævə'nəumə/ /kævə'nəumə/ n. 海绵状(血管)瘤

2. hemosiderin /ˌhi:məu'sidərin/ /ˌhimoˈsɪdərɪn/ n. 含铁血黄素

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

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