Which condition may present with a low set ears and shield chest?

Turner syndrome is characterized by a wide range of physical features resulting from the absence or structural abnormalities of one of the X chromosomes. Low-set ears and a shield chest are distinctive traits associated with this condition. The term "shield chest" refers to a broad, flat chest shape, often due to the absence of lateral breast development, which is common in individuals with Turner syndrome. These physical clues help to differentiate it from other genetic conditions.

Down syndrome, while associated with distinctive facial features, including low-set ears, does not typically present with a shield chest. Marfan syndrome is primarily characterized by tall stature, long limbs, and cardiovascular issues, and does not present with these specific ear and chest findings. Klinefelter syndrome can involve various physical features, including tall stature and gynecomastia, but is also not characterized by low-set ears or a shield-shaped chest. Recognizing the characteristic features of Turner syndrome is essential for accurate diagnosis and management.