hypostatic ectasia

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• hypostatic ectasia — dilatation of a blood vessel from the effect of gravity on the blood …   Medical dictionary

• ectasia, ectasis — Dilation of a tubular structure. [G. ektasis, a stretching] annuloaortic e. supravalvular dilation of the aorta involving both its wall and the valve ring, which, however, remains of smaller diameter than the more distal …   Medical dictionary