Trombosis venosa profunda masiva de miembro superior secundaria a fractura de clavícula / Thrombose veineuse profonde massive du membre supérieur après une fracture de clavicule / Upper-Extremity Massive Deep Vein Thrombosis Secondary of Broken Collarbone

La trombosis venosa profunda del miembro superior es una entidad rara que se asocia con el uso de catéteres, estados de hipercoagulabilidad, anticonceptivos orales, neoplasias, síndrome de costilla cervical o de los escalenos, fracturas de clavícula y trombosis inducida por el esfuerzo. Se presenta un paciente de 53 años, del sexo masculino que desarrolló una trombosis de las venas axilar, cefálica y basílica tres días después de sufrir una fractura de tercio medio de clavícula que se inmovilizó inicialmente con vendaje en 8. El cuadro se resolvió con tratamiento con tinzaparina sódica y rehabilitación funcional; la fractura de clavícula consolidó y se recanalizaron las venas trombosadas. Se han reportado algunos casos de trombosis de las venas axilar o subclavia ocasionada por fracturas claviculares. Es muy infrecuente la aparición de trombosis extensa afectando a varias venas, en este caso, secundaria al traumatismo o a la presión ejercida por el vendaje(AU)

Upper-extremity deep vein thrombosis is a rare entity that is associated with the use of catheters, hypercoagulable states, oral contraceptives, neoplasias, cervical rib or scalene syndrome, clavicle fractures and stress induced thrombosis. A 53 year male patient is presented here. He developed thrombosis of the axillary, cephalic and basilica veins three days after suffering a fractured middle third clavicle, which was initially immobilized with eight-bandage. The condition was solved with enoxaparin sodium and functional rehabilitation; clavicle fracture consolidated and thrombosed veins had recanalization. Some cases of thrombosis of the axillary or subclavian veins caused by clavicular fractures have been reported. It is very rare the occurrence of extensive thromboses affecting several veins, in this case, secondary to trauma or pressure exerted by the bandage(AU)

La thrombose veineuse profonde du membre supérieur est une affection rare liée à l'usage de canules, à l'hypercoagulabilité, aux contraceptifs oraux, aux néoplasies, au syndrome de la côte cervicale ou du scalène antérieur, aux fractures de clavicule et à la thrombose induite par l'effort. Un patient âgé de 53 ans, ayant souffert une thrombose des veines axillaire, céphalique et basilique trois jours après une fracture du tiers moyen de clavicule et étant immobilisé au début par un bandage en forme de 8, est présenté. Le traitement a consisté à l'administration de tinzaparine sodique et la réhabilitation fonctionnelle ; la fracture de clavicule a consolidé et les veines affectées par la thrombose ont été récanalisées. Quelques cas de thrombose de la veine axillaire ou sous-clavière provoquée par des fractures claviculaires ont été rapportés. La survenue d'une thrombose étendue affectant plusieurs veines, dans ce cas après un traumatisme ou une pression exercée par un bandage, est très peu fréquente(AU)

Morphology evolution of Cu(2-x)S nanoparticles: from spheres to dodecahedrons.

An oriented attachment and growth mechanism allows an accurate control of the size and morphology of Cu(2-x)S nanocrystals, from spheres and disks to tetradecahedrons and dodecahedrons. The synthesis conditions and the growth mechanism are detailed here.

One-step synthesis of metallic and metal oxide nanoparticles using amino-PEG oligomers as multi-purpose ligands: size and shape control, and quasi-universal solvent dispersibility.

A one-step and room temperature synthesis toward metallic and metal oxide nanoparticles soluble both in water and organic solvent is reported. This was achieved using amino-PEG oligomers that make it possible to control the size and shape of the nanoparticles.

Novel ruthenium(ii) complexes containing the N-phosphorylated iminophosphorane-phosphine ligand Ph(2)PCH(2)P{[double bond, length as m-dash]NP([double bond, length as m-dash]O)(OEt)(2)}Ph(2): a new coordination mode of its methanide anion.

The reactivity of complex [Ru(eta(6)-p-cymene)(kappa(3)P,N,O-Ph(2)PCH(2)P{[double bond, length as m-dash]NP([double bond, length as m-dash]O)(OEt)(2)}Ph(2))][SbF(6)](2) towards a variety of mono- and bidentate neutral ligands has been studied, allowing the high-yield synthesis of the novel half-sandwich Ru(ii) derivatives [Ru(eta(6)-p-cymene)(L)(kappa(2)P,O-Ph(2)PCH(2)P{[double bond, length as m-dash]NP([double bond, length as m-dash]O)(OEt)(2)}Ph(2))][SbF(6)](2) (L = N[triple bond, length as m-dash]CMe , N[triple bond, length as m-dash]CEt , PMe(3), PMe(2)Ph , PMePh(2), PPh(3), P(OMe)(3), P(OEt)(3), P(OPh)(3), py , kappa(1)P-dppm , kappa(1)P-dppe ), as well as the octahedral species [Ru(Ninsertion markN)(2)(kappa(2)P,O-Ph(2)PCH(2)P{[double bond, length as m-dash]NP([double bond, length as m-dash]O)(OEt)(2)}Ph(2))][SbF(6)](2) (Ninsertion markN = bipy , phen ). Deprotonation of complexes ,, upon treatment with an excess of NaOH in CH(2)Cl(2), generates the monocationic derivatives [Ru(Ninsertion markN)(2)(kappa(2)P,N-Ph(2)PC(H)[double bond, length as m-dash]P{NP([double bond, length as m-dash]O)(OEt)(2)}Ph(2))][Cl] (Ninsertion markN = bipy , phen ) in which the methanide anion adopts an unprecedented kappa(2)P,N bidentate coordination mode. The structures of compounds , and have been determined by single-crystal X-ray diffraction methods.

Lesión quística en calcáneo. Lipoma intraóseo / Cystic lesion of the calcaneus. Intraosseous lipoma

Presentamos 2 casos de lipoma intraóseo de calcáneo, en un varón de 38 años con dolor en talón y una mujer de 27 años sin dolor en talón. La radiografías simples mostraban una lesión quística en el calcáneo, bien definida y con márgenes esclerosos. La tomografía computarizada mostró una lesión de baja densidad bien delimitada con valores de atenuación idénticos al tejido adiposo. Los hallazgos en la resonancia magnética mostraron en las imágenes T1 y T2 potenciadas una intensidad de señal similar al tejido graso subcutáneo, y en T2-STIR una señal de baja intensidad con supresión completa que indica la presencia de grasa normal. Hasta hace poco, los lipomas intraóseos sólo se podían diagnosticar con anatomía patológica, pero ahora es fácil realizar el diagnóstico radiológico con resonancia magnética (AU)

We report two cases of intraosseous lipoma in the calcaneus of a 38 year old man, complaining about heel pain and a 27 year old woman with no pain. Plain radiographs showed a well-defined cystic lesion in the calcaneus with sclerotic margins. Computed tomography (CT) detected a well-defined, low-density lesion with attenuation values equal to adipose tissue. Magnetic resonance (MR) findings show similar signal intensity with subcutaneous adipose tissue on T1-weighted and T2-weighted images, and STIR-T2 imaging showing low signal intensity with complete suppression indicating the presence of normal fat. As a result, at first intraosseous lipomas could only be identified pathologically, but now it is easy to perform radiological diagnosis using MR (AU)

[Cystic lesion of the calcaneus. Intraosseous lipoma]. / Lesión quística en calcáneo. Lipoma intraóseo.

We report two cases of intraosseous lipoma in the calcaneus of a 38 year old man, complaining about heel pain and a 27 year old woman with no pain. Plain radiographs showed a well-defined cystic lesion in the calcaneus with sclerotic margins. Computed tomography (CT) detected a well-defined, low-density lesion with attenuation values equal to adipose tissue. Magnetic resonance (MR) findings show similar signal intensity with subcutaneous adipose tissue on T1-weighted and T2-weighted images, and STIR-T2 imaging showing low signal intensity with complete suppression indicating the presence of normal fat. As a result, at first intraosseous lipomas could only be identified pathologically, but now it is easy to perform radiological diagnosis using MR.

Synthesis and reactivity studies of palladium(II) complexes containing the N-phosphorylated iminophosphorane-phosphine ligands Ph2PCH2P{=NP(=O)(OR)2}Ph2 (R=Et, Ph): application to the catalytic synthesis of 2,3-dimethylfuran.

Reactions of [PdCl2(COD)] with 1 equiv. of the iminophosphorane-phosphine ligands Ph2PCH2P{=NP(=O)(OR)2}Ph2 (R=Et, Ph) lead to the novel Pd(II) derivatives cis-[PdCl2(kappa2-(P,N)-Ph2PCH2P{=NP(=O)(OR)2}Ph2)] (R=Et, Ph). Pd-N bond cleavage readily takes place upon treatment of these species with a variety of two-electron donor ligands. By this way, complexes cis-[PdCl2(kappa1-(P)-Ph2PCH2P{=NP(=O)(OR)2}Ph2)(L)] (R=Et, L=CNtBu, CN-2,6-C6H3Me2, py, P(OMe)3, P(OEt)3; R=Ph, L=CNtBu, CN-2,6-C6H3Me2, py, P(OMe)3, P(OEt)3) have been synthesized in high yields. The addition of two equivalents of ligands to dichloromethane solutions of [PdCl2(COD)] results in the formation of complexes trans-[PdCl2(kappa1-(P)-Ph2PCH2P{=NP(=O)(OR)2}Ph2)2] (R=Et, Ph), which can be converted into the dicationic species [Pd(Ph2PCH2P{=NP(=O)(OR)2}Ph2)2][SbF6]2 (R=Et, Ph) by treatment with AgSbF6. Complex also reacts with CNtBu to afford trans-[Pd(kappa1(P)-Ph2PCH2P{=NP(=O)(OPh)2}Ph2)2(CNtBu)2][SbF6]2. The structures of and have been determined by single-crystal X-ray diffraction methods. In addition, the ability of these Pd(II) complexes to promote the catalytic cycloisomerization of (Z)-3-methylpent-2-en-4-yn-1-ol into 2,3-dimethylfuran has also been studied.