[The cell composition and cytoarchitectonic characteristics of the lymphoid formations in the kidney pelvis and ureter of adults].

Quantitative characteristics, cell composition and cytoarchitectonics are characterized for lymph nodules in the walls of renal pelvis and ureter according to the findings in 14 total autopsied specimens of the pelvis and ureter obtained from 7 females and males aged 22-60. All of them had been killed in accidents and were free of urogenital, hematological, immune and lymphatic diseases. As indicated by histological sections, lymph nodules in the pelvic and ureteral mucosa of the examinees did not contain clear reproduction centers. The cells of the above lymph nodules comprised primarily small and medium-sized lymphocytes as well as reticular cells. Blast cells and macrophages were not numerous and averaged 2.6% of the total cell population. The count of cells undergoing destruction remained stable and made up from 1.57 +/- 1.6 to 3.52 +/- 2.06%. As for cytoarchitectonics, typical for the nodules was the existence of pairs, groups and chains of small and medium-sized lymphocytes.