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Intracardiac heterotopia--mesenchymal and endodermal.
  1. S Ariza,
  2. E Rafel,
  3. J A Castillo,
  4. J A Garcia-Canton

    Abstract

    A case is reported of an intracardiac 'epithelial heterotopia' with a predominant mesenchymal component. This is thought to have resulted from the differentiation of aberrant primitive cell(s) displaced into the heart during its development. Though microscopically resembling a myxoma, this lesion is clearly distinguished by the presence of glandular structures. The myxoid component exhibited a startling invasiveness which resulted in occlusion of the superior vena cava, causing symptoms very early in life and death at the age of 6 months.

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