BJR
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
British Journal of Radiology (2005) 78, 1042-1046
© 2005 British Institute of Radiology
doi: 10.1259/bjr/97374075
This Article
Right arrow Abstract Freely available
Right arrow Full Text
Right arrow Full Text (PDF)
Services
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by de Mendonca, J L F
Right arrow Articles by Ferreira, A C L
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by de Mendonca, J L F
Right arrow Articles by Ferreira, A C L

Pseudotumoural hemicerebellitis: imaging findings in two cases

J L F de Mendonca, MD 1,2 H Barbosa, MD 3 S L Viana, MD 2 F M O Freitas, MD 2 M A C B Viana, MD 3 and A C L Ferreira, MD 3

1 Radiology Unit, Hospital de Base do Distrito Federal, SMHS 101, Bloco A, Subsolo, CEP 70335-900, Brasilia, DF – Brazil, 2 Magnetic Resonance Department, Clinica Radiologica Vila Rica, SHLS 716, Centro Clinico Sul, W423/431, CEP 70390-907, Brasilia, DF – Brazil and 3 Pediatric Neurology Unit, Hospital de Base do Distrito Federal, SMHS 101, Bloco A, 7° andar, CEP 70335-900, Brasilia, DF – Brazil



View larger version (92K):

[in a new window]
  		Figure 1. Case 1. Non-enhanced CT at the level of the posterior fossa showing an ill-defined hypodensity affecting the right cerebellar hemisphere.

 


View larger version (85K):

[in a new window]
  		Figure 2. Case 1. MRI of the posterior fossa. (a) Axial T2 weighted image and (b) fluid attenuation inversion recovery (FLAIR) images and (c) coronal T1 weighted image image after infusion of gadolinium demonstrating a swollen right cerebellar hemisphere, hyperintense in T2 weighted image and FLAIR, distorting the fourth ventricle and exerting mild mass effect over the brainstem. A pial pattern of gadolinium enhancement can be seen.

 


View larger version (131K):

[in a new window]
  		Figure 3. Case 1. Follow up MRI (axial fluid attenuation inversion recovery (FLAIR) and T2 weighted fast spin echo (FSE) images (a, b) and (c, d) axial and coronal T1 weighted images after infusion of gadolinium) showing important regression of the swelling, of the contrast enhancement and of the mass effect. Residual hyperintensity in long repetition time images can be seen.

 


View larger version (89K):

[in a new window]
  		Figure 4. Case 2. Non-enhanced CT showing hypodensity of (a) the right cerebellar hemisphere and (b) of the superior vermis. Blunting of the right vallecula is evident.

 


View larger version (83K):

[in a new window]
  		Figure 5. Case 2. MRI with (a) axial T2 weighted imaging and (b) fluid attenuation inversion recovery (FLAIR) images and (c) coronal T1 weighted image after infusion of gadolinium revealing a swollen right cerebellar hemisphere, with high signal intensity in long repetition time sequences and hypointensity in T1 weighted imaging affecting both the cortex and the white matter. The superior vermis is also affected. There is mass effect over the fourth ventricle.

 


View larger version (81K):

[in a new window]
  		Figure 6. Case 2. Follow-up MRI ((a) axial T2 weighted image and (b) fluid attenuation inversion recovery (FLAIR) images and (c) coronal T1 weighted image after infusion of gadolinium) demonstrating almost complete remission of the abnormalities previously observed, with only mild hyperintensity remaining on long repetition time sequences.

 




HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
BJR DMFR IMAGING  ALL BIR JOURNALS 
Copyright © 2005 by the British Institute of Radiology.