聽診三角又稱肩胛旁三角，其內上界為斜方肌的外下緣，外側界為肩胛骨脊柱緣，下界為背闊肌上緣，三角的底為脂肪組織、深筋膜和第6肋間隙，表面覆以皮膚和淺筋膜，是背部聽診呼吸音最清楚的部位，該三角範圍可能還會擴大。
The triangle of auscultation is a triangle located below the inferior angle of the scapula, bounded by the trapezius medially, rhomboideus major superiorly and the latissimus dorsi inferiorly. This is a place where you can place your stethoscope and auscultate the lungs.
