Cryptogenic Fibrosing Alveolitis

Alternate Name: Idiopathic Pulmonary Fibrosis

Test:

ESR (H), Hb (N or L), S.total Ig (H), S.rheumatoid factor (+ 30%), chest X-ray (AB), radionuclide scan (AB), pulmonary function tests (AB), lung bi­opsy (AB)

Sign:

Clubbing, cor pulmonale, cyanosis

Dd:

Sarcoidosis, pneumoconiosis, TB, atypical pneu-monia, haematological malignancy, chronic pul-monary hypertension, radiation damage

Phys:

May occur in association with collagen vascular disorders. Aetiology unknown