We report a newborn female born at 29 weeks' gestation who was unable
to be resuscitated following a vaginal breech delivery. At autopsy the
larynx and trachea contained a 1.2 x 0.2 cm fragment of tissue. Micro
scopic sections of this tissue revealed it to consist of decidua. This
is the first report in the literature of tracheal obstruction seconda
ry to aspiration of decidua. The mechanism by which this tissue may ha
ve resulted in completed obstruction of the trachea is discussed.