title: Idiopathic retroperitoneal fibrosis: histochemical evidence for lateral spread of the process from the midline.
mesh_terms: D000368:Aged; D003238:Connective Tissue / Q000032:analysis; D005347:Fibroblasts / Q000032:analysis; D006025:Glycosaminoglycans / Q000032:analysis; D006485:Hemosiderin / Q000032:analysis; D006651:Histocytochemistry; D006801:Humans; D008214:Lymphocytes / Q000032:analysis; D008297:Male; D008407:Mast Cells / Q000032:analysis; D012185:Retroperitoneal Fibrosis / Q000473:pathology*
chemical_list: D006025:Glycosaminoglycans; D006485:Hemosiderin