Shrinking lung is a feature of: (A) SLE, (B) Rheumatoid ahritis, (C) Sarcoidosis, (D) Scleroderma
Answer is A. Shrinking lung syndrome (SLS) is an uncommon feature of systemic lupus erythematosus (SLE) characterized by dyspnea, pleuritic chest pain, diaphragmatic elevation, restrictive ventilatory defect and reduced respiratory muscle strength as measured by volitional tests. Ref - pubmed.com