We report the second case of intraalveolar haemorrhage asociated with
an autoimmune thyrotoxicosis. While intraalveolar haemorrhage was not
recurrent since 7 years with corticosteroid therapy, a relapse occurre
d when we began the treatment for an autoimmune thyrotoxicosis. We dis
cuss the link between intraalveolar haemorrhage and autoimmune thyroto
xicosis or its treatment.