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1.
J Neuroradiol ; 33(1): 38-44, 2006 Feb.
Artigo em Francês | MEDLINE | ID: mdl-16528204

RESUMO

Acute cerebellitis is one of the main causes of acute cerebellar dysfunction in children. It is either infectious, usually viral, post-infectious or post vaccinal in etiology. Diagnosing acute cerebellitis may be difficult in patients with only subtle cerebellar signs and when cerebro-spinal fluid examination is normal. MRI is the most adequate imaging technique to demonstrate cerebellar involvement. The authors report the clinical and neuro-imaging findings in 4 paediatric cases. Patient's age varied from 2 to 7 years and predominant clinical symptoms were fever, headache and vomiting; ataxia was noted only in 2 cases. Viral serologic tests were negative in 3 cases and demonstrated Epstein-Barr virus in 1. Initial MRI examination (2 cases) demonstrated increased intensity on T2W and Flair sequences of the cerebellar gray matter with pial enhancement. Clinical outcome was good with complete resolution of symptoms in 3 cases and persistent mild right upper limb paresis in one. The resolution of the signal abnormality was well demonstrated on MRI in one case, suggesting an inflammatory etiology with moderate residual cerebellar atrophy.


Assuntos
Doenças Cerebelares/diagnóstico por imagem , Doenças Cerebelares/patologia , Encefalite/diagnóstico por imagem , Encefalite/patologia , Doença Aguda , Criança , Pré-Escolar , Feminino , Humanos , Masculino , Radiografia
2.
Arch Pediatr ; 13(1): 41-3, 2006 Jan.
Artigo em Francês | MEDLINE | ID: mdl-16289782

RESUMO

Renal cell carcinoma is rare in children and is usually found in late childhood. The authors report on an exceptional case of renal cell carcinoma in a 10-year-old girl. The radiological aspect is misleading and has not been previously reported in the literature. Renal cortex was thin because of congenital megalo-ureter, so the tumor developed entirely into excretory cavities (to the proximal ureter), while a primitive urothelial disease (tumoral or inflammatory) was first evoked. The atrophied cortex was the tumoral starting point which prolapsed into excretory cavities, upraising the urothelial epithelium.


Assuntos
Carcinoma de Células Renais/diagnóstico por imagem , Neoplasias Renais/diagnóstico por imagem , Doenças Ureterais/diagnóstico por imagem , Idade de Início , Atrofia , Criança , Diagnóstico Diferencial , Feminino , Humanos , Córtex Renal/patologia , Radiografia , Doenças Ureterais/etiologia
3.
Rev Chir Orthop Reparatrice Appar Mot ; 91(4): 341-5, 2005 Jun.
Artigo em Francês | MEDLINE | ID: mdl-16158549

RESUMO

Hydatidosis of bone is rare. Vertebral localizations predominate. Standard imaging may be misleading, suggestive of a malignant tumor or infection. We present the case of a patient with a humeral hydatid. This localization is very rare and presents an unusual radiographic aspect. Computed tomography produces an image suggestive of a tumor. The correct diagnosis can be established with MRI, particularly with the STIR sequence. In our patient, MRI enabled us to establish the diagnosis preoperatively and evaluate extension. MRI has been found to be highly contributive to the diagnosis of hydatidosis of bone and for assessment of intra- and peri-osseous extension.


Assuntos
Equinococose/diagnóstico , Equinococose/patologia , Úmero/patologia , Úmero/parasitologia , Adulto , Neoplasias Ósseas/diagnóstico , Neoplasias Ósseas/patologia , Diagnóstico Diferencial , Humanos , Imageamento por Ressonância Magnética , Masculino
4.
J Radiol ; 86(4): 421-5, 2005 Apr.
Artigo em Francês | MEDLINE | ID: mdl-15959437

RESUMO

Three cases of hydatid disease of the soft tissues are reported. All presented as soft tissue lesions in the neck and lower extremities. All three cases were studied with ultrasound (US) and magnetic resonance (MR) imaging techniques. Two patients presented with multivesicular lesions, which were considered diagnostic for hydatid disease. The third showed a lesion with hypoechoic solid and lobulated pattern mimicking lymph node. MR outlined the cystic pattern with intense peripheral enhancement and was suggestive of an infected cystic lesion. Surgery was performed in all three cases. Hydatid disease presenting in the soft tissues can be diagnosed with confidence, when US and/or MR shows multivesicular lesions. MR appears to be the most useful imaging technique when a complex or solid pattern is present. Enhancement of the peri-cystic soft tissues can be considered as a suggestive MR feature of soft tissue hydatid disease.


Assuntos
Equinococose/diagnóstico por imagem , Imageamento por Ressonância Magnética , Infecções dos Tecidos Moles/diagnóstico por imagem , Adulto , Idoso , Feminino , Humanos , Perna (Membro) , Masculino , Pescoço , Radiografia
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