Prolonged hypoxia, such as occurs with chronic obstructive pulmonary disorder, may result in swelling of the tongue thalassemia petechiae polycythemiaProlonged hypoxia, such as occurs with chronic obstructive pulmonary disorder, may result in swelling of the tongue thalassemia petechiae polycythemiaProlonged hypoxia, such as occurs with chronic obstructive pulmonary disorder, may result in swelling of the tongue thalassemia petechiae polycythemia