Airways obstruction in patients with sarcoidosis.

We present data concerning the frequency of airways obstruction among 1630 patients with pulmonary sarcoidosis diagnosed and followed up in our centre between 1960 and 1988. Airways obstruction was diagnosed when FEV1% VC was below 70%. There were 93 patients in whom ventilatory impairment of the obstructive type was found (5.7%). Further, we divided them into two groups of-pure obstruction and mixed-when obstruction was accompanied by reduced vital capacity. Possible mechanisms of the obstructive pattern in spirography are discussed.