pleocytosis Path.
(pliːəʊsaɪˈtəʊsɪs)
[f. pleo-, pleio- + -cyte + -osis.]
The presence of abnormally many cells, spec. of lymphocytes in the cerebro-spinal fluid.
| 1911 Stedman Med. Dict. 681/1 Pleocytosis, lymphocytosis in the cerebrospinal fluid in syphilitic and parasyphilitic diseases of the central nervous system. 1924 Browning & Mackenzie Recent Methods in Diagnosis & Treatment of Syphilis (ed. 2) xvi. 304 Pleocytosis is found in practically all acute and chronic inflammatory processes affecting the meninges. 1976 Lancet 4 Dec. 1222/1 The cerebrospinal fluid in patient 3 showed pleocytosis (23 mononuclear cells/mm). |