<prompt> All of the following are features of scleroderma except:Diffuse periosteal reactionEsophageal dysmotilityErosion of tip of phalangesLung nodular infiltrates  <response>: Scleroderma Characterised by inflammatory, vascular and fibrotic changes of skin and a variety of internal organs. Lung involvement- diffuse and bilateral basilar reticulonodular infiltrates and rarely pulmonary nodules. Extremity radiography should be performed to reveal calcinosis and resorption of the distal tufts of the digits. Esophageal dysmotility can be demonstrated using esophageal manometry. Bone changes in scleroderma are acro-osteolysis, periaicular osteoporosis, joint space narrowing and erosions. 