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Introduction: In Mexico, chronic liver illnesses are found between the firsts ten death causes; definite handling for hepatic terminal insufficiency is a transplant. Objective: Identifying by means of the ultrasound, the most common complications in hepatic post-transplanted patients as much in early post-surgical as well as late stage, focused to offer opportune handling. Material and methods: Hepatic transplants cases revision in the last ten years (1998-2008) accomplished at Instituto Nacional de Ciencias Médicas y Nutrición "Salvador Zubirán" (National Medical Sciences and Nutrition Institute) of the clinical and radiological files to know trans and post-surgical ultrasound findings as well as follow-up evaluations. Results: In all cases a hepatic ultrasound of the transplant was performed during the first 72 post-surgical hours. Findings reported as abnormal included hematomas, bilomas, echogenicity alterations, ascitis; flow absence at portal branches, under resistance index and flow of the hepatic artery. Long term follow-up evaluate complications progress, resolution and sequelae in parenchyma, as well as vascularity status. Conclusions: Ultrasound is the more accessible tool for graft evaluation, from the moment earlier as it is trans-surgical one, as well as the first hours, weeks, to late follow-up of months or years. For the above, emergency data that will require opportune attention must be kept in mind. [ABSTRACT FROM AUTHOR]

Introduction: The gland thyroid cancer (GTC) is relatively infrequent. Ultrasound is a useful tool for its diagnosis. It is important to know the ecographic characteristics of a nodule thyroid (NT) that is associated more frequently with cancer. Most of the cases have good forecast after surgical resection. Aim: To analyze the graphic-ultrasound characteristics of the GTC's patients of our institution and to do a world literature's review on the topic. Material and method: We made a review of the clinic and radiologic records of 81 pacients with TGC's diagnostic confirmed by hitopatology in a five years period. Two Radiologists assigned to the ultrasound section took to end the scrutiny of the studies and there was realized the statistical analysis of the obtained information. Also there was done an exhaustive review of the world literature on the topic. Results: It was more frequent in women (86 %), in the group of age of between 31 and 59 years (62 %), of histological type papilar (91 %) and from minor size to 3 cm (54 %). The predominant ecographic characteristics were these: solid nodule (70 %), hipoecoic (46 %), with microcalcifications (47 %) and hipoecoic halo (72 %). Discussion: The results of our study do not differ in a significant way with the reported in the world literature, just in the fact that there wasn't predilection for the groups of age of less than 30 and any more than 60 years. Conclusion: The finds of this review are similar to the reported in the literature. The characteristics of biggest importance and more frequently finded were the solid composition of the nodule, its hipoecogenicity and the presence of microcalcifications. [ABSTRACT FROM AUTHOR]

Objective: To review the spectrum of ultrasound features of the renal cells cancer (RCC), and make a comparison with that reported in the literature. Material and methods: The radiological file of patients with malign kidney tumor diagnosis in the last five years was reviewed, from which only whose diagnosis out of RCC corroborated by pathology were included. Besides, those whose ultrasounds didn't comply with valid approaches were excluded, resulting a sample of 35 patients. Blind reading of the ultrasounds by two radiologists of the Institute was carried out. Results: The results are similar to those reported in the literature as for the size of the lesion, to the diagnosis, echogenicity, presence of cystic/hemorrhagic degeneration, homogeneity / heterogeneity of the lesion, vascular pattern and calcifications. Conclusions: The ultrasound is an economic and available method in the evaluation of RCC, and it continues being the study of first election, although it requires of experience and is operator-dependant. [ABSTRACT FROM AUTHOR]