BOF: 3.40
A 46-year-old male presents with chest pain. He has a
chest x-ray and the radiology registrar who reports on it tells you that the
only abnormality he can see on it is a “reverse comma sign” in the right
apex. Your house office asks you what this is and your reply is that the
reverse comma is caused by failure of migration of the azygos vein during
development and it is made up of:
a)
Fibrous tissue and the azygos vein
b)
Parietal pleura and the azygos vein
c)
Visceral pleura and the azygos vein
d)
Visceral and parietal pleura and the azygos vein
e)
Azygos vein
