Table 1.

Poland Syndrome Classification (modified from Ribeiro et al. [3]).

Mild (Grade I)	Amastia; hypomastia or areolar asymmetry No musculoskeletal chest alterations or partial absence of pectoralis major muscle No superior limb alterations Other congenital alterations may be present
Severe (Grade II)	Hypomastia or amastia; areolar asymmetry Total absence of pectoralis major muscle; different alterations of the ipsilateral bones/muscles of the chest No superior limb alterations Other congenital alterations may be present
Very Severe (Grade III)	Amastia; areolar asymmetry Different musculoskeletal alterations Ipsilateral superior limb alterations Other congenital alterations may be present