ECL cell hyperplasia results from hypergastrinemia, and in man this occurs due to achlorhydria in atrophic gastritis (pernicious anemia [PA]) and gastrinoma (Zollinger-Ellison syndrome [ZES]). Progression to neoplasia, i.e., ECL cell carcinoids (usually small, multicentric and non-functional), occurs in some five to 10 percent of patients with PA where they remain gastrin-dependent and reversib...

Focus on the translation and validation of measurement instruments has left a gap in the discussion on how to construct multilingual qualitative tools, such as interviews. Traditional methods of forward and backward translation have been criticized for weak conceptual equivalence, a crucial issue when multiple language interview methods are used. Through a creative arts metaphor of weaving, the...

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/ by-nc/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited. Myofibroma is a rare benign neoplasm of myofibroblastic cells that can occur in either a so...

Keywords Name of the disease and synonyms Names of excluded diseases Diagnostic criteria/Definition Comments on the differential diagnosis Incidence Clinical description Management/Treatments Etiology Biological diagnostic methods Unresolved questions and comments References Abstract Castleman's disease or angiofollicular lymphoid hyperplasia is a rare disease with two identified forms. The loc...