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Thymus - Ectopic Tissue - Gallery

Image of ectopic tissue in the thymus from a male Harlan Sprague-Dawley rat in a subchronic study
Thymus - Ectopic tissue, Thyroid in a control male Harlan Sprague-Dawley rat from a subchronic study. A structurally normal fragment of thyroid tissue (arrow) is adjacent to the thymus (arrowhead).
Image of ectopic tissue in the thymus from a female F344/N rat in a chronic study
Thymus - Ectopic tissues, Parathyroid in a treated female F344/N rat from a chronic study. Ectopic parathyroid tissue (arrow) extends from the surface of this involuted thymus (arrowhead).
NTP is located at the National Institute of Environmental Health Sciences, part of the National Institutes of Health.