Gueneau de Mussey point

Gué·neau de Mus·sey point

(gā-nō' dĕ mū-sā' poynt)
A point, painful under pressure, at the junction of a line prolonging the left border of the sternum and a horizontal line at the level of end of the bony portion of the tenth rib; it is present in cases of diaphragmatic pleurisy.