It is true that sometimes reactive type 2 pneumocytes may appear atypical, but the cells in this case are not only atypical but also pleomorphic.I am not certain what stains may help.

• 尽管有时候2型肺泡细胞可呈不典型性，但本例细胞不仅有异性，而且多形性，我不确信什么标记有帮助。