Akademik

Retrosternal

Behind the sternum (the breastbone).

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Posterior to the sternum.

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ret·ro·ster·nal -'stər-nəl adj situated or occurring behind the sternum <\retrosternal pain>

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ret·ro·ster·nal (ret″ro-sturґnəl) [retro- + sternal] situated or occurring posterior to the sternum.

Medical dictionary. 2011.