略語大辞典 [Med] 15 PS pathological stage (病態の)病理学的(所見による)ステージ(分類).pathological stage; of a disease; e.g. PS2; a stage classification of a disease; ref. CS(clinical stage); ref. PS(performance status); [Med]. 丸善「略語大辞典」JLogosID : 11856598