Weihrauch T R, Ewe K, Weis H, Korting G W
Arch Dermatol Res (1975). 1975 Nov 14;254(1):29-35. doi: 10.1007/BF00561531.
In 15 patients with progressive systemic sclerosis esophageal function was examined radiologically and by manometry. Only one third of the patients had experienced dysphagia, while radiologically esophageal motility was abnormal in 8 patients (55%) and by manometry even in 11 patients (73%). Therefore the absence of symptoms does not exclude extensive involvement of the esophagus. Furthermore the manometric results indicate that involvement of the esophagus in the edematous-indurative stage of scleroderma should be suspected more frequently than assumed generally on the base of radiological studies alone.