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Resumen Objetivo Evaluar las caracteristicas semiologicas radiologicas e histologicas de los tumores adicionales detectados por tomosintesis comparativamente con los detectados por mamografia convencional. Material y metodos Sobre una muestra de 166 pacientes se analizaron retrospectivamente los hallazgos radiologicos y anatomopatologicos de los tumores detectados unicamente por mamografia (105 casos) y de los tumores adicionales detectados por tomosintesis (61 casos). Resultados Se encontraron diferencias en la semiologia radiologica de los 2 grupos (p Conclusion La manifestacion radiologica mas frecuente de los tumores adicionales fue la distorsion arquitectural. La tomosintesis conllevo una mayor deteccion de distorsiones arquitecturales y de carcinomas tubulares.

The aim of the study was to show the clinical and radiological manifestations of metastases to the breast (MB). From 1987 to 2006, 33 patients with MB were diagnosed at our institution. Their clinical and radiological features were retrospectively evaluated. Of the 33 cases, 31 presented as a palpable breast lump. On mammography, their findings were classified as follows: well-circumscribed masses (11 cases), ill-circumscribed masses (five), focal asymmetric densities (one) and inflammatory skin changes (six). Mammograms were normal in six cases (all of them showed dense breast tissue). Four CT scans showed two well-circumscribed masses and two ill-circumscribed masses. Ultrasonography was available in 18 cases: hypoechoic lesions (15 cases) were more frequent than hyperechoic (one) or isoechoic lesions (two). The appearance on magnetic resonance was similar to primary breast cancer (one case). The most common primary tumours causing MB were haematological malignancies (nine cases) and melanomas (seven). Metastases to the breast showed a wide range of mammographic and ultrasonographic appearances, resembling both benign and malignant lesions. Any patient who presents with a breast lump with a history of cancer should undergo a core-needle biopsy in order to determine the histology of the lump.

Las fistulas ureteroarteriales se asocian con una alta mortalidad, lo que se ha relacionado a un retraso en el diagnostico y tratamiento. A pesar de que se conocen diversos factores predisponentes y de que existe una manifestacion inicial muy concreta (hematuria), la fistula ureteroarterial es de dificil diagnostico. Clasicamente, el tratamiento de dicha fistula ha consistido en la cirugia abierta y en la embolizacion vascular percutanea. Hoy en dia, las endoprotesis vasculares se perfilan como alternativa terapeutica en el tratamiento de las fistulas ureteroarteriales. Se presenta el caso de una paciente con una probable fistula ureteroarterial tratada mediante embolizacion ureteral y colocacion de endoprotesis vascular cubierta.

Among the broad spectrum of tumoral bone lesions that affect the sacrum are chondrosarcoma, chondroma, aneurysmal bone cyst, Ewing sarcoma, giant cell tumor, lymphoma, Paget disease, osteosarcoma, plasmacytoma, and neurogenic tumors. The clinical onset may be insidious, and sacral bone tumors may be

We describe a novel technique for marking non-palpable breast lesions with the aim of selecting the best approach prior to performing a biopsy. The technique employs a new coil, specifically designed for breast localization, guided by stereotaxy. This technique is reserved for selected cases in which the lesion is seen peripherally in only one mammographic view with negative or non-conclusive ultrasonographic results, and deeply seated after a stereotactic study. Once the coil is released beside the lesion, the shortest approach from the skin may be employed to perform the biopsy. To our knowledge, this is the first report of this technique.

Tumors originating in the endolymphatic system are extremely rare, and very few articles have been published about this type of tumors. Up to 15% of cases are associated to von Hippel-Lindau disease. This article describes the case of a patient previously diagnosed with von Hippel-Landau disease that presented a sudden loss of hearing in the left ear. Specific imaging tests (computed tomography [CT] and magnetic resonance imaging [MRI]) showed the presence of a neoplasm originating in the left endolymphatic sac. Histological analysis of the surgical specimen determined it corresponded to an adenocarcinoma of the endolymphatic sac.

Los ganglios intramamarios son hallazgos mamograficos frecuentes, sin trascendencia patologica. Presentamos dos casos de lesiones malig-nas de mama cuya apariencia mamografica puede resultar equivoca al comportarse como los ganglios intramamarios. Aunque el aspecto ma-mografico de una lesion recuerde a la de un ganglio intramamario, de-be ser estudiada detenidamente, tanto si presenta algun borde mal deli-mitado como si es palpable.

We present two cases of suspicious mammographic images that remained stable over long periods of time (44 and 24 months). The biopsies revealed infiltrating ductal carcinoma and ductal carcinoma in situ. In one case, the lesion consisted of a cluster of microcalcifications, while the other was characterized by architectural distortion. There are very few references to this subject in the literature. We conclude that all suspicious mammographic lesions should be biopsied, despite previous evidence suggesting their stability, even over long periods of time.

We report an infrequent mammographic case in which a gross-calcified lipid cyst evolved spontaneously to form a cluster of pleomorphic microcalcifications which were indistinguishable from those seen in breast cancer. The biopsy performed was consistent with fat necrosis. Ultrasonography of the specimen showed a nodule with mixed echogenicity surrounded by a hypoechoic rim. To our knowledge, this behavior is extremely rare, with only one similar case reported in the literature.