RESUMO
PURPOSE: This study was conducted to define the gray-scale, color, and power Doppler sonographic appearances and spectral analysis patterns of anterior nasal masses. METHODS: Eight patients with anteriorly located nasal masses were referred to our hospital for CT of the paranasal sinuses. Subsequently, they were examined with a high-frequency linear-array ultrasound transducer. We performed gray-scale sonography and color and power Doppler imaging. RESULTS: Five masses were nasal hemangiomas. The three remaining masses were a submucosal glandular cyst, a nasolabial cyst, and tuberculum septi hypertrophy. Three of the hemangiomas were histopathologically confirmed. Sonography identified the anatomic origin of all 8 lesions. On color and power Doppler imaging, the 5 hemangiomas exhibited intense vascularity that decreased with compression. Spectral analysis demonstrated arterial and venous flow within the hemangiomas, with resistance indices of 0.60-0.66 and peak systolic velocities of 6.4-18.4 cm/second. The other 3 lesions were avascular or had vascularity only at the periphery. CONCLUSIONS: Anterior nasal fossa tumors can frequently be diagnosed by clinical examination, but specific sonographic and Doppler patterns can help to establish the anatomic origin, the local extension, and the correct diagnosis in indeterminate cases, obviating other diagnostic imaging or surgical procedures.
Assuntos
Hemangioma/diagnóstico por imagem , Cavidade Nasal/diagnóstico por imagem , Neoplasias Nasais/diagnóstico por imagem , Ultrassonografia Doppler em Cores/métodos , Adulto , Idoso , Idoso de 80 Anos ou mais , Estudos de Avaliação como Assunto , Feminino , Hemangioma/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Cavidade Nasal/patologia , Neoplasias Nasais/patologia , Seios Paranasais/diagnóstico por imagem , Seios Paranasais/patologia , Gravidez , Sensibilidade e Especificidade , Tomografia Computadorizada por Raios XRESUMO
The AA. present a rarely encountered case combining a left recurrent palsy due to an sclerosis and hyperostosis of the first costoesternal joint, which improved after an antiinflammatory treatment.
Assuntos
Síndrome de Hiperostose Adquirida/diagnóstico , Dor no Peito/etiologia , Paresia/etiologia , Doenças do Sistema Nervoso Periférico/complicações , Dor no Peito/diagnóstico , Feminino , Humanos , Imageamento por Ressonância Magnética , Pessoa de Meia-Idade , Paresia/diagnóstico , Doenças do Sistema Nervoso Periférico/diagnóstico , Recidiva , Articulações Esternocostais/diagnóstico por imagem , Articulações Esternocostais/inervação , Articulações Esternocostais/patologia , Tomografia Computadorizada por Raios XRESUMO
Water is essential for life. Thirst is a pressing need which always has to be satisfied. Infants need 3 times more water than adults if the requirements is calculated according to body weight. A correct balance in the sensory, physical, chemical and bacteriological qualities of water make it drinkable. Two laws have been passed recently concerning drinking water in France: one deals with water for human consumption (January 3 1989 decree), and the other deals with drinkable bottled mineral water (June 3 1989 decree). Tap water and bottled water are under strict vigilance. For babies under 4 months of age, it is better to use bottled water with a low mineral content (nitrates less than 15 mg/l). Hard water is safe; water softeners are useful only for hot water. Fluorination supplies of water is good for dental health at a concentration of 1 mg/l. Plastic bottles are as safe as glass ones.
