Pectus excavatum - medial breast margin sign

Case contributed by Kamal Hapuarachchi


Preoperative chest X-ray.

Patient Data

Age: 25 years
Gender: Female

PA Chest X-ray

Classic features of pectus excavatum as demonstrated on this frontal chest X-ray.


Lateral Chest X-ray

Pectus excavatum is confirmed on this lateral view as demonstrated by the inward depression of the sternum. 

Case Discussion

This case is an excellent example of the medial breast margin sign, which may be seen in women with pectus excavatum on frontal chest X-rays. This sign consists of more sharply defined and more vertically oriented medial breast borders compared to those of women with normal chest wall morphology.

This case also features the other classic signs of pectus excavatum, which include: 

  1. increased density in the right inferomedial lung
  2. blurring of the right heart border
  3. vertical anterior ribs
  4. convex left heart border
  5. obliteration of the descending thoracic aortic silhouette
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Case information

rID: 71414
Published: 4th Oct 2019
Last edited: 22nd Jan 2020
Inclusion in quiz mode: Included