mastogram

例句：

1. 1. The patient's chest was examined to determine the cause of his chest pain.
   为了确定病人胸痛的原因，医生检查了他的胸部。
2. 2. During surgery, the surgeon made a sternotomy incision to access the heart.
   在手术中，外科医生做了一个胸骨切口来进入心脏。
3. 3. The mastogram revealed a fractured rib and a collapsed lung.
   X光片显示肋骨骨折和肺塌陷。