Parenchymal neurocysticercosis: follow-up and staging by MRI

被引：0

作者：

J. L. Dumas

J. M. Visy

C. Belin

A. Gaston

D. Goldlust

M. Dumas

机构：

[1] Department of Radiology,

[2] Hôpital Avicenne,undefined

[3] 125 Route de Stalingrad,undefined

[4] F-93009 Bobigny,undefined

[5] France,undefined

[6] Institute of Tropical Neurology,undefined

[7] Faculty of Medicine,undefined

[8] 2 Rue du Docteur Marcland,undefined

[9] F-87025 Limoges Cedex,undefined

[10] France,undefined

[11] Department of Neurology,undefined

[12] Hôpital Lariboisière,undefined

[13] 2 Rue Ambroise Paré,undefined

[14] F-75010 Paris,undefined

[15] France,undefined

[16] Department of Neurology,undefined

[17] Hôpital Avicenne,undefined

[18] 125 Route de Stalingrad,undefined

[19] F-93009 Bobigny,undefined

[20] France,undefined

[21] Department of Neuroradiology,undefined

[22] Hôpital Henri-Mondor,undefined

[23] 51 Avenue du Maréchal de Lattre de Tassigny,undefined

[24] F-94010 Creteil Cedex,undefined

[25] France,undefined

来源：

Neuroradiology | 1997年 / 39卷

关键词：

Key words Cysticercosis; central nervous system; Magnetic resonance imaging;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We describe the evolution of parenchymal cerebral cysticerci on MRI, to assess signs of early cyst degeneration. We studied 15 lesions in four treated and one untreated patient. MRI was performed before therapy and repeated in the 1st month after each course of anticysticercus drugs, every 4 months during the 1st year and then annually; the follow-up period was 8–48 months. Lesions were classified according to changes in four features: cyst content and capsule signal, gadolinium enhancement and oedema signal. We were able to recognise each of the pathological phases; five MRI stages were identified. Stage 1 showed oedema and/or nodular gadolinium enhancement in the tissue invasion phase; stage 2 was cerebrospinal fluid-like signal within a cyst in the vesicular phase; stage 3 showed a thick capsule with an impure liquid content signal and surrounding oedema, in the cystic phase; stage 4 showed the disappearance of the cyst fluid content signal in the degenerative phase; stage 5 showed a calcified lesion in the residual phase. Stage 1 lesions disappeared after therapy; the other progressed from one stage to another. Stage 4 indicated the end of viability of the parasite and determined the point after which treatment was useless. On T2-weighted images changes in the cyst content differed according to the history of the lesion; nodular low intensity followed the natural degeneration of the parasite and a mixed fluid signal with punctate low signal seemed to represent the specific result of therapy. MRI staging can help in the evaluation of indications for treatment and facilitate clinical therapeutic trials.

引用

页码：12 / 18

页数：6