#amastia

• Amastia — A rare congenital anomaly characterized by the complete unilateral or bilateral absence of breast tissue, areola, and nipple. Clinically, this embryonic development malformation results from the failure of the mammary ridge to proliferate during early gestation.
• Amastia — An alternative spelling variant or adapted graphical form in medical literature for 'amastie' (amastia); a rare congenital anomaly characterized by the complete unilateral or bilateral absence of breast tissue, areola, and nipple.