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1.
Arq. bras. endocrinol. metab ; 52(9): 1501-1504, Dec. 2008.
Article in English | LILACS | ID: lil-504557

ABSTRACT

Craniopharyngiomas and germ cell tumors (GCT) may affect the pituitary-hypothalamic region during childhood. Although different in origin, their clinical and radiological features may be similar. In this article we present a 5-year-old girl with clinical and radiological findings (computer tomography calcification) that were initially considered as craniopharyngioma. However clinical outcome, blood and cerebral spinal fluid tumoral markers, and results from anatomopathology and immunohistochemistry disclosed a mixed GCT. This case report highlights that some clinical features and radiological findings of pituitary-hypothalamic tumors may be misdiagnosed as craniopharyngioma mainly when there is a mature teratoma with cartilaginous tissue differentiation.


Craniofaringiomas e tumores mistos de células germinativas (TCG) podem acometer a região hipotálamo-hipofisária durante a infância. Embora tenham diferentes origens, as manifestações clínicas e achados radiológicos podem ser semelhantes. Nosso objetivo é relatar o caso de uma paciente de 5 anos de idade, cujas manifestações clínicas e achados radiológicos (presença de calcificações à tomografia computadorizada [TC]) foram inicialmente considerados como provável craniofaringioma. No entanto, a piora clínica progressiva, marcadores tumorais séricos e liquóricos elevados, assim como os resultados do estudo anatomopatológico e imunoistoquímico revelaram tratar-se de TCG. Este caso enfatiza que alguns achados clínicos e radiológicos de tumores da região hipotálamo-hipofisária podem ser erroneamente diagnosticados como craniofaringiomas, principalmente se houver presença de teratoma maduro com diferenciação em tecido cartilaginoso.


Subject(s)
Child, Preschool , Female , Humans , Craniopharyngioma/pathology , Hypothalamic Neoplasms/pathology , Neoplasms, Germ Cell and Embryonal/pathology , Pituitary Neoplasms/pathology , Craniopharyngioma , Craniopharyngioma/surgery , Diagnosis, Differential , Hypothalamic Neoplasms , Hypothalamic Neoplasms/surgery , Neoplasms, Germ Cell and Embryonal , Neoplasms, Germ Cell and Embryonal/surgery , Pituitary Neoplasms , Pituitary Neoplasms/surgery , Teratoma/pathology , Teratoma , Teratoma/surgery
2.
Arq. bras. cardiol ; 86(6): 432-438, jun. 2006. tab
Article in Portuguese | LILACS | ID: lil-430212

ABSTRACT

OBJETIVO: O objetivo deste estudo foi identificar variáveis ecocardiográficas que definam graus de disfunção cardíaca em ratos com estenose aórtica (EAo). MÉTODOS: Ratos Wistar (n = 23), machos (90-100 g), foram submetidos a cirurgia para indução de EAo. As variáveis ecocardiográficas analisadas foram: diâmetros diastólico do ventrículo esquerdo (DDVE) e sistólico do átrio esquerdo em valores absolutos e normalizados para o peso corporal; diâmetro sistólico do VE (DSVE); três índices de encurtamento do VE ( por cento de encurtamento endocárdico, por centoEnc.Endo; por cento de encurtamento miocárdico, por centoEnc.Mio; e velocidade de encurtamento da parede posterior do VE, VEPP); e índice de massa do VE (IMVE). Essas variáveis foram utilizadas para a análise de agrupamento ("cluster analysis"). RESULTADOS: A análise de agrupamento possibilitou separar os ratos com EAo em dois grupos: disfunção leve (n = 13) e disfunção severa (n = 9). Os intervalos de confiança das seguintes variáveis não apresentaram superposição dos seus valores: DDVE, DSVE, por centoEnc.Endo, por centoEnc.Mio, IMVE e VEPP. CONCLUSÃO: A utilização conjunta dos intervalos de confiança dessas variáveis permite identificar dois grupos de ratos com estenose aórtica e diferentes graus de comprometimento cardíaco, possibilitando a realização de estudos longitudinais com grupos homogêneos de animais.


Subject(s)
Animals , Male , Rats , Aortic Valve Stenosis/complications , Cardiac Output, Low/etiology , Hypertrophy, Left Ventricular/etiology , Ventricular Dysfunction/etiology , Aortic Valve Stenosis , Disease Models, Animal , Echocardiography , Hypertrophy, Left Ventricular , Rats, Wistar , Reproducibility of Results , Severity of Illness Index , Ventricular Remodeling , Ventricular Dysfunction
3.
Radiol. bras ; 35(4): 209-212, jul.-ago. 2002. ilus, tab
Article in Portuguese | LILACS | ID: lil-335115

ABSTRACT

Este trabalho foi realizado para verificar se a ultra-sonografia do pâncreas oferece dados auxiliares na classificação de diabéticos adultos dos tipos 1 e 2. O tamanho e a ecogenicidade do pâncreas foram determinados pela ultra-sonografia em 81 diabéticos, sendo 20 do tipo 1 e 61 do tipo 2 (53 obesos e oito não-obesos). Os pacientes tipo 2 obesos diferiram dos demais por apresentarem área total e diâmetro ântero-posterior do corpo do pâncreas significativamente maiores. Quanto à ecogenicidade pancreática, esta estava aumentada com maior freqüência nos diabéticos tipo 2 obesos que nos diabéticos tipo 1. Consideramos, assim, que a ultra-sonografia do pâncreas constitui metodologia auxiliar na classificação de diabéticos entre os tipo 1 e 2, sendo menos eficaz quando os últimos não são obesos.


Subject(s)
Humans , Male , Female , Diabetes Mellitus, Type 2 , Diabetes Mellitus, Type 1 , Pancreas , Diabetes Mellitus , Pancreas
4.
Arq. bras. cardiol ; 78(1): 51-58, Jan. 2002. ilus, tab
Article in Portuguese, English | LILACS | ID: lil-301418

ABSTRACT

OBJECTIVE: To assess the cardiovascular features of Ullrich-Turner's syndrome using echocardiography and magnetic resonance imaging, and to correlate them with the phenotype and karyotype of the patients. The diagnostic concordance between the 2 methods was also assessed. METHODS: Fifteen patients with the syndrome were assessed by echocardiography and magnetic resonance imaging (cardiac chambers, valves, and aorta). Their ages ranged from 10 to 28 (mean of 16.7) years. The karyotype was analyzed in 11 or 25 metaphases of peripheral blood lymphocytes, or both. RESULTS: The most common phenotypic changes were short stature and spontaneous absence of puberal development (100 percent); 1 patient had a cardiac murmur. The karyotypes detected were as follows: 45,X (n=7), mosaics (n=5), and deletions (n=3). No echocardiographic changes were observed. In regard to magnetic resonance imaging, coarctation and dilation of the aorta were found in 1 patient, and isolated dilation of the aorta was found in 4 patients. CONCLUSION: The frequencies of coarctation and dilation of the aorta detected on magnetic resonance imaging were similar to those reported in the literature (5.5 percent to 20 percent, and 6.3 percent to 29 percent, respectively). This confirmed the adjuvant role of magnetic resonance imaging to Doppler echocardiography for diagnosing cardiovascular alterations in patients with Ullrich-Turner's syndrome


Subject(s)
Humans , Female , Child , Adolescent , Adult , Echocardiography, Doppler , Magnetic Resonance Imaging , Turner Syndrome , Karyotyping , Phenotype , Turner Syndrome
5.
Arq. bras. cardiol ; 76(2): 119-126, Feb. 2001. tab, graf
Article in Portuguese, English | LILACS | ID: lil-280780

ABSTRACT

OBJECTIVE: To determine the frequency of hypothyroidism in a sample of hyperlipemic patients and evaluate clinical and laboratory factors indicative of thyropathy among them. METHODS: Fifty-one hyperlipemic patients, grouped according to an earlier or recent diagnosis of their thyroid function into euthyroid and hypothyroid, were evaluated with clinical and laboratory examinations of blood levels of free T4 and TSH (by radioimmunoassay). Patients were on average 46.8 + or - 11.7 years old, predominantly of the female sex (62.5 percent); 31 percent had a previous diagnosis of hypothyroidism and were under treatment with thyroxin. RESULTS: Fourteen three percent of patients analyzed had hypothyroidism, which had not been detected before. Differentiating attributes of the groups analyzed were: a predominance of females among the hypothyroid patients and a higher HDL serum concentration among those recently diagnosed. CONCLUSION: In the present study, new cases of hypothyroidism in hyperlipemic patients were a frequent occurrence, yet few clinical and laboratory data except tests evaluating free T4 and TSH in the blood indicated which patients had thyroid dysfunction


Subject(s)
Humans , Male , Female , Middle Aged , Hyperlipidemias/blood , Hypothyroidism/blood , Analysis of Variance , Cholesterol, HDL/blood , Cholesterol, LDL/blood , Hyperlipidemias/complications , Hypothyroidism/complications , Hypothyroidism/epidemiology , Incidence , Retrospective Studies
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