Gallium-67 Imaging In A Patient With Paracoccidioidomycosis: A Case Report

A 26 year-old female was admitted with abdominal pain, fever and weight loss. The clinical and laboratory investigations led to the diagnosis of paracoccidioidomycosis. Gallium-67 whole body images correlated well with the clinical course of the disease and with the patient's prognosis.423167170Barbosa, W., Paracoccidioidomicose (Blastomicose sul-americana) (1989), pp. 653-662. , AMATO NETO, V. & BALDY, J.L.S., ed. Doenças transmissíveis. 3. ed. São Paulo, SarvierBarbosa, W., Daher, R.R., Blastomicose sul-americana (Paracoccidioidomicose) (1995), pp. 634-646. , VERONESI, R.FOCACCIA, R. & DIETZE, R., ed. Doenças infecciosas e parasitárias. 8. ed. São Paulo, Guanabara-KooganBecker, W., The contribution of nuclear medicine to the patient with infection (1995) Europ. J. Nucl. Med., 22, pp. 1195-1211Bethlem, N.M., Lemle, A., Bethlem, E., Wanke, B., Paracoccidioidomycosis (1991) Semin. Resp. Med., 12, pp. 81-97Braga, F.J.H.N., Abreu, P.R., Rivitti, M.C.M., La paracoccidioidomycose chéloide étudiée avec le gallium (1992) Bull. Soc. Path. Exot., 85, pp. 118-119Braga, F.J.H.N., Camargo, E.E., Segurado, A.A.C., La paracoccidioidomycose évaluée par quatre études isotopiques (1992) Bull. Soc. Path. Exot., 85, pp. 115-117Dayaniki, B.F., Weissman, A.F., Wahl, R.L., Successful gallium-67 imaging of North American pulmonary blastomycosis (1993) J. Nucl. Med., 34, pp. 958-960Del Negro, G.M.B., Garcia, N.M., Rodrigues, E.G., The sensitivity, specificity and efficiency values of some serological tests used in the diagnosis of paracoccidioidomycosis (1991) Rev. Inst. Med. Trop. S. Paulo, 33, pp. 277-280Giorgi, M.C.P., Camargo, E.E., Pinto, W.P., Del Negro, G., Gallium-67 imaging in the diagnosis of blastomycosis (1987) Europ. J. Nucl. Med., 13, pp. 300-304Negroni, R., Paracoccidioidomycosis (1993) Int. J. Derm., 32, pp. 847-859Palestro, C.J., The current role of gallium imaging in infection (1994) Semin. Nucl. Med., 24, pp. 128-141Peters, A.M., The use of nuclear medicine in infections (1998) Brit. J. Radiol., 71, pp. 252-26

Clay mineralogy and magnetic susceptibility of Oxisols in geomorphic surfaces

Studies analyzing the variability of clay minerals and magnetic susceptibility provide data for the delineation of site-specific management areas since many of their attributes are important to agronomy and the environment. This study aimed to evaluate the spatial variability of clay minerals, magnetic susceptibility, adsorbed phosphorus and physical attributes in Oxisols of sandstones in different geomorphic surfaces. For that purpose, soil samples were collected every 25 m along a transect located within the area where the geomorphic surfaces were identified and mapped. The transect occupied the central portion of 500 ha, where it was also sampled for density purposes with one sample per six hectares. Soil samples were collected at a depth of 0.0-0.2 m. The results of the physical, chemical, mineralogical and magnetic susceptibility analyses were subjected to statistical and geostatistical analyses. The nature of the clay minerals and magnetic susceptibility was dependent on the variation of the soil parent material. High values of magnetic susceptibility were associated with the presence of maghemite and magnetite of coarse size. The spatial variability of crystallinity and the content of Fe oxides, as well as magnetic susceptibility, were dependent on the age of the geomorphic surfaces. The youngest surface had greater spatial variability of these attributes. The iron (goethite and hematite) and aluminum (gibbsite) oxides in the youngest geomorphic surface influenced the low values of soil density and high values of total pore volume, micropores and P adsorption. The characterization of the spatial variability of Fe oxides and susceptibility allowed for the delineation of homogeneous areas