“…18 The motility disorders seen by manometry and oesophagrams though helpful are not pathognomonic, and must be interpreted within their clinical context. Typical findings are firstly: lack of normal peristaltic contractions in the lower part of the oesophagus, with the defect being more marked in the lower oesophagus because scleroderma primarily affects smooth rather than striated muscle, 19 and secondly: gastro‐oesophageal reflux through a patulous sphincter. - (b) Other Collagen Diseases: Oesophageal motor disorders are also noted in systemic lupus erythematosus, 20 polymyositis — dermatomyositis, 21 Sjögren's syndrome, 22 and Raynaud's penhomenon. 23
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