RT Journal Article SR Electronic T1 Systemic idiopathic fibrosis and systemic Weber-Christian disease JF Journal of Clinical Pathology JO J Clin Pathol FD BMJ Publishing Group Ltd and Association of Clinical Pathologists SP 645 OP 649 DO 10.1136/jcp.18.5.645 VO 18 IS 5 A1 M. J. Mitchinson YR 1965 UL http://jcp.bmj.com/content/18/5/645.abstract AB Idiopathic retroperitoneal fibrosis is represented as one of the manifestations of a widespread disease, systemic idiopathic fibrosis. Some evidence is presented which suggests its origin as an inflammatory disease of adipose tissue. Although relatively rare, the idiopathic diseases of adipose tissue and its blood vessels are worthy of closer study.