Loss of colonic haustration in progressive systemic sclerosis

Complete loss of colonic haustration was observed in six cases of progressive systemic sclerosis. Varying degrees of haustral loss or sacculation were noted in twelve others. An increase in colonic length was characteristic and, occasionally, there was slight to moderate generalized dilatation. Correlation of these findings with the microscopic appearance of the colon showed that muscular atrophy and fibrous replacement were consistent findings, varying in degree. Although the data are insufficient to permit definite conclusions, it is suggested that these changes may be responsible for colonic lengthening and loss of haustration. Attention is drawn to the importance of not confusing this appearance with other conditions, particularly chronic ulcerative colitis.
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