Characterization of inflammatory cells in a patient with chronic periaortitis

Am J Cardiovasc Pathol. 1990;3(2):121-9.


During repair of an inflammatory abdominal aortic aneurysm, fresh samples of the aneurysm wall were obtained. Histology confirmed the diagnosis of chronic periaortitis,- advanced atherosclerosis with medial attenuation, and periaortic inflammation. Monoclonal antibodies were used to identify the cells of the inflammatory infiltrate. The majority of the adventitial lymphocytes were B cells. No B cells were present in the atheroma. The majority of mature plasma cells contained IgG with a few plasma cells containing IgM. T cells, predominantly T helper cells, were found in the atheroma and adventitia. Positive DR staining was shown by the majority of lymphocytes, by macrophage-like cells in germinal centers of lymphoid follicles in the adventitia, by some vascular endothelial cells, and by some smooth muscle cells. The implications of these findings are discussed.

Publication types

  • Case Reports
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antibodies, Monoclonal
  • B-Lymphocyte Subsets / immunology*
  • HLA-DR Antigens / analysis*
  • Humans
  • Immunoenzyme Techniques
  • Middle Aged
  • Retroperitoneal Fibrosis / immunology
  • Retroperitoneal Fibrosis / pathology*
  • T-Lymphocyte Subsets / immunology*


  • Antibodies, Monoclonal
  • HLA-DR Antigens