Objetivo: avaliar familiares de primeiro grau de pacientes portadores de espondilite anquilosante... more Objetivo: avaliar familiares de primeiro grau de pacientes portadores de espondilite anquilosante (EA), em relação a alterações clínicas, imunogenéticas e radiológicas. Métodos: foram avaliados 14 pacientes portadores de EA, acompanhados no Hospital das Clínicas da FMRP-USP e 30 familiares de primeiro grau destes pacientes, pela história clínica e exame físico, tipificação do antígeno HLA-B27 (por microlinfocitotoxicidade e por citometria de fluxo), radiografia simples das articulações sacroilíacas e, em oito familiares, ressonância magnética (RM) da mesma região. Resultados: observou-se que 47% (14/30) dos familiares apresentavam dor lombar com característica inflamatória crônica e 20% deles (6/30) apresentavam evidências radiológicas de sacroiliite bilateral. O diagnóstico de espondilite anquilosante (EA) foi confirmado em 10% dos familiares (3/30). O antígeno HLA-B27 estava presente em 60% dos familiares testados pela técnica de linfocitotoxicidade ou por citometria de fluxo. A RM não se mostrou superior à radiologia convencional na detecção precoce de alterações sacrilíacas. Conclusões: a avaliação de familiares de primeiro grau de pacientes portadores de EA pode revelar formas paucissintomáticas ou subclínicas da doença em uma proporção significativa de sujeitos. Palavras-chave: espondilite anquilosante, sacroiliite, HLA-B27, citometria de fluxo, ressonância nuclear magnética e investigação familiar. ABSTRACT Objective: to evaluate first-degree relatives of ankylosing spondylitis (AS) patients regarding to clinical, immunogenetic and radiological aspects. Methods: fourteen patients with AS followed at the University Hospital of the Ribeirão Preto Medical School, University of São Paulo, Brazil (FMRP-USP) and thirty first-degree relatives were evaluated by clinical history, physical examination, HLA-B27 typing (by lymphocytotoxicity and flow cytometry), plain radiography and magnetic resonance imaging (MRI) of sacroiliacal joints. Results: we found that 47% (14/30) of the relatives presented low back pain with inflammatory characteristics, 20% (6/30) fulfilled displayed radiological features of bilateral sacroiliitis, and 10% (3/30) fulfilled the criteria for ankylosing spondylitis. Sixty percent of the relatives were HLA-B27 positive, verified either by lymphocytotoxicity or flow cytometry. MRI was not more sensitive than conventional radiography in the detection of early changes of sacroiliitis. Conclusions: the evaluation of first-degree relatives of patients with ankylosing spondylitis may reveal oligosymptomatic and subclinical forms of the disease in a significant proportion of subjects.
O. Colecistectomia: aspectos técnicos e indicações para o tratamento da litíase biliar e das neop... more O. Colecistectomia: aspectos técnicos e indicações para o tratamento da litíase biliar e das neoplasias. Medicina (Ribeirão Preto) 2008; 41 (4): 429-44.
Clear cell meningioma (CCM) has been identified and included in the World Health Organization cla... more Clear cell meningioma (CCM) has been identified and included in the World Health Organization classification of CNS tumors recently. CCMs are histologically characterized by sheets of polygonal cells with clear cytoplasm, which is the expression of high glycogen concentration. Compared with other variants of meningiomas, CCMs occur in younger patients and usually are located in the spinal canal and posterior fossa, the last ones mainly in the cerebellopontine angle. Some reports suggest that CCMs have high recurrence rate and potentially aggressive behavior. Poor outcome has been shown in intracranial and spinal tumor location, but indicators that predict outcome have not been established. The authors present two cases of intracranial CCMs, with excellent outcome in patients harboring tumor location (restricted to the fourth ventricle) and some clinical particular features (young age, gender, obesity, and moderate impairment of intellectual capacity). To the best of our knowledge, these are the two first reported cases of clear cell meningioma located primarily in the fourth ventricle.
Journal of ultrasound in medicine: official journal of the American Institute of Ultrasound in Medicine
Objective. The purpose of this study was to evaluate the diagnostic usefulness of ulnar nerve son... more Objective. The purpose of this study was to evaluate the diagnostic usefulness of ulnar nerve sonography in leprosy neuropathy with electrophysiologic correlation. Methods. Twenty-one consecutive patients with leprosy (12 men and 9 women; mean age ± SD, 47.7 ± 17.2 years) and 20 control participants (14 men and 6 women; mean age, 46.5 ± 16.2 years) were evaluated with sonography. Leprosy diagnosis was established on the basis of clinical, bacteriologic, and histopathologic criteria. The reference standard for ulnar neuropathy in this study was clinical symptoms in patients with proven leprosy. The sonographic cross-sectional areas (CSAs) of the ulnar nerve in 3 different regions were obtained. Statistical analyses included Student t tests and receiver operating characteristic curve analysis. Results. The CSAs of the ulnar nerve were significantly larger in the leprosy group than the control group for all regions (P < .01). Sonographic abnormalities in leprosy nerves included focal thickening (90.5%), hypoechoic areas (81%), loss of the fascicular pattern (33.3%), and focal hyperechoic areas (4.7%). Receiver operating characteristic curve analysis showed that a maximum CSA cutoff value of 9.8 mm 2 was the best discriminator (sensitivity, 0.91; specificity, 0.90). Three patients with normal electrophysiologic findings had abnormal sonographic findings. Two patients had normal sonographic findings, of which 1 had abnormal electrophysiologic findings, and the other refused electrophysiologic testing. Conclusions. Sonography and electrophysiology were complementary for identifying ulnar nerve neuropathy in patients with leprosy, with clinical symptoms as the reference standard. This reinforces the role of sonography in the investigation of leprosy ulnar neuropathy.
To illustrate the imaging findings of the abdominal involvement from tuberous sclerosis, includin... more To illustrate the imaging findings of the abdominal involvement from tuberous sclerosis, including MRI and TC.
Objetivo: avaliar familiares de primeiro grau de pacientes portadores de espondilite anquilosante... more Objetivo: avaliar familiares de primeiro grau de pacientes portadores de espondilite anquilosante (EA), em relação a alterações clínicas, imunogenéticas e radiológicas. Métodos: foram avaliados 14 pacientes portadores de EA, acompanhados no Hospital das Clínicas da FMRP-USP e 30 familiares de primeiro grau destes pacientes, pela história clínica e exame físico, tipificação do antígeno HLA-B27 (por microlinfocitotoxicidade e por citometria de fluxo), radiografia simples das articulações sacroilíacas e, em oito familiares, ressonância magnética (RM) da mesma região. Resultados: observou-se que 47% (14/30) dos familiares apresentavam dor lombar com característica inflamatória crônica e 20% deles (6/30) apresentavam evidências radiológicas de sacroiliite bilateral. O diagnóstico de espondilite anquilosante (EA) foi confirmado em 10% dos familiares (3/30). O antígeno HLA-B27 estava presente em 60% dos familiares testados pela técnica de linfocitotoxicidade ou por citometria de fluxo. A RM não se mostrou superior à radiologia convencional na detecção precoce de alterações sacrilíacas. Conclusões: a avaliação de familiares de primeiro grau de pacientes portadores de EA pode revelar formas paucissintomáticas ou subclínicas da doença em uma proporção significativa de sujeitos. Palavras-chave: espondilite anquilosante, sacroiliite, HLA-B27, citometria de fluxo, ressonância nuclear magnética e investigação familiar. ABSTRACT Objective: to evaluate first-degree relatives of ankylosing spondylitis (AS) patients regarding to clinical, immunogenetic and radiological aspects. Methods: fourteen patients with AS followed at the University Hospital of the Ribeirão Preto Medical School, University of São Paulo, Brazil (FMRP-USP) and thirty first-degree relatives were evaluated by clinical history, physical examination, HLA-B27 typing (by lymphocytotoxicity and flow cytometry), plain radiography and magnetic resonance imaging (MRI) of sacroiliacal joints. Results: we found that 47% (14/30) of the relatives presented low back pain with inflammatory characteristics, 20% (6/30) fulfilled displayed radiological features of bilateral sacroiliitis, and 10% (3/30) fulfilled the criteria for ankylosing spondylitis. Sixty percent of the relatives were HLA-B27 positive, verified either by lymphocytotoxicity or flow cytometry. MRI was not more sensitive than conventional radiography in the detection of early changes of sacroiliitis. Conclusions: the evaluation of first-degree relatives of patients with ankylosing spondylitis may reveal oligosymptomatic and subclinical forms of the disease in a significant proportion of subjects.
O. Colecistectomia: aspectos técnicos e indicações para o tratamento da litíase biliar e das neop... more O. Colecistectomia: aspectos técnicos e indicações para o tratamento da litíase biliar e das neoplasias. Medicina (Ribeirão Preto) 2008; 41 (4): 429-44.
Clear cell meningioma (CCM) has been identified and included in the World Health Organization cla... more Clear cell meningioma (CCM) has been identified and included in the World Health Organization classification of CNS tumors recently. CCMs are histologically characterized by sheets of polygonal cells with clear cytoplasm, which is the expression of high glycogen concentration. Compared with other variants of meningiomas, CCMs occur in younger patients and usually are located in the spinal canal and posterior fossa, the last ones mainly in the cerebellopontine angle. Some reports suggest that CCMs have high recurrence rate and potentially aggressive behavior. Poor outcome has been shown in intracranial and spinal tumor location, but indicators that predict outcome have not been established. The authors present two cases of intracranial CCMs, with excellent outcome in patients harboring tumor location (restricted to the fourth ventricle) and some clinical particular features (young age, gender, obesity, and moderate impairment of intellectual capacity). To the best of our knowledge, these are the two first reported cases of clear cell meningioma located primarily in the fourth ventricle.
Journal of ultrasound in medicine: official journal of the American Institute of Ultrasound in Medicine
Objective. The purpose of this study was to evaluate the diagnostic usefulness of ulnar nerve son... more Objective. The purpose of this study was to evaluate the diagnostic usefulness of ulnar nerve sonography in leprosy neuropathy with electrophysiologic correlation. Methods. Twenty-one consecutive patients with leprosy (12 men and 9 women; mean age ± SD, 47.7 ± 17.2 years) and 20 control participants (14 men and 6 women; mean age, 46.5 ± 16.2 years) were evaluated with sonography. Leprosy diagnosis was established on the basis of clinical, bacteriologic, and histopathologic criteria. The reference standard for ulnar neuropathy in this study was clinical symptoms in patients with proven leprosy. The sonographic cross-sectional areas (CSAs) of the ulnar nerve in 3 different regions were obtained. Statistical analyses included Student t tests and receiver operating characteristic curve analysis. Results. The CSAs of the ulnar nerve were significantly larger in the leprosy group than the control group for all regions (P < .01). Sonographic abnormalities in leprosy nerves included focal thickening (90.5%), hypoechoic areas (81%), loss of the fascicular pattern (33.3%), and focal hyperechoic areas (4.7%). Receiver operating characteristic curve analysis showed that a maximum CSA cutoff value of 9.8 mm 2 was the best discriminator (sensitivity, 0.91; specificity, 0.90). Three patients with normal electrophysiologic findings had abnormal sonographic findings. Two patients had normal sonographic findings, of which 1 had abnormal electrophysiologic findings, and the other refused electrophysiologic testing. Conclusions. Sonography and electrophysiology were complementary for identifying ulnar nerve neuropathy in patients with leprosy, with clinical symptoms as the reference standard. This reinforces the role of sonography in the investigation of leprosy ulnar neuropathy.
To illustrate the imaging findings of the abdominal involvement from tuberous sclerosis, includin... more To illustrate the imaging findings of the abdominal involvement from tuberous sclerosis, including MRI and TC.
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