In these last 2 settings, the complementary use of liver-specific contrast agents can be advantageous. Furthermore, if the lesion has a diameter < 1 cm, diagnosis is usually unreliable. However, in lesions measuring 1-2 cm, establishing the definitive diagnosis is a real challenge, with sensitivity values of 45-65%, but generally with excellent specificity (> 95%).
They are more reliable in lesions > 2 cm. In regard to hepatocellular carcinoma, the diagnostic performance of magnetic resonance through the «conventional» protocols and multi-detector computerized tomography consisting of multiphase evaluation with intravenous contrast, largely depends on the size of the lesion. Gadolinium-enhanced magnetic resonance for the evaluation of hepatic lesions is increasingly being used in clinical practice, especially in patients with suspicious focal lesions, whether benign or malignant. The journal accepts original articles, scientific letters, review articles, clinical guidelines, consensuses, editorials, letters to the Editors, brief communications, and clinical images in Gastroenterology in Spanish and English for their publication. The scientific works include the areas of Clinical, Endoscopic, Surgical, and Pediatric Gastroenterology, along with related disciplines. The principal aim of the journal is to publish original work in the broad field of Gastroenterology, as well as to provide information on the specialty and related areas that is up-to-date and relevant. Its pages are open to the members of the Association, as well as to all members of the medical community interested in using this forum to publish their articles in accordance with the journal editorial policies. The Revista de Gastroenterología de México (Mexican Journal of Gastroenterology) is the official publication of the Asociación Mexicana de Gastroenterología (Mexican Association of Gastroenterology).
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