Abstract
RECENT work involved accurate weighing of the thymus glands of young (6–12 weeks old) hooded Lister rats of both sexes. It became evident that great care was essential in dissecting out the thymus because of the risk of including one or more lymph nodes in the tissue taken for weighing. In rats of this age, mediastinal lymph nodes are occasionally difficult to distinguish from part of the thymus. One or more of these nodes is usually found on each side of the thymus and is visible from the front on opening the thorax. Identification is simple when the nodes lie apart from the thymus ; but when they are welded by connective tissue to the thymus, and the symmetry of the sides of this organ is not altered, confusion may arise.
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Richards, M. B., Nature, 158, 306 (1946).
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AGNEW, L. Weight of the Rat Thymus. Nature 161, 205 (1948). https://doi.org/10.1038/161205a0
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DOI: https://doi.org/10.1038/161205a0
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