通过分析5个家族24例家族性肥厚型心肌病的临床和X线表现,认为根据肥厚型心肌病的平片表现如心影轻～中度增大(主要是左室段圆隆),左室突度≥1.8,左房轻～中度增大,心影轮廓清晰及心影增大与肺野轻微或无明显淤血不相称等,结合临床表现可初步作出诊断。并可及时发现肥厚型心肌病家族中的年轻患者。 By analyzing the clinical and radiographic manifestations of 24 familial hypertrophic cardiomyopathy in 5 families, it is considered that the plain film presentation based on hypertrophic cardiomyopathy is mild to moderate (mainly left ventricular segment dilatation), left Room protrusion ≥ 1.8, left atrial mild ~ moderate increase, clear outline of the heart shadow and heart shadow increased lung field with or without obvious congestion is not commensurate, combined with clinical manifestations can be initially diagnosed. And timely detection of hypertrophic cardiomyopathy family of young patients.