rosette /ro·sette/ (ro-zet´) [Fr.] any structure or formation resembling a rose, such as (a) the clusters of polymorphonuclear leukocytes around a globule of lipid nuclear material, as observed in the test for disseminated lupus erythematosus, or (b) a figure formed by the chromosomes in an early stage of mitosis.
rosette
rosette [ro-zet´]
Flexner-Wintersteiner rosette a spoke- and wheel-shaped cell formation seen in retinoblastoma and certain other ophthalmic tumors.
Homer Wright rosette a circular or spherical grouping of dark tumor cells around a pale, eosinophilic, central area that contains neurofibrils but lacks a lumen; seen in some medulloblastomas, neuroblastomas, and retinoblastomas or other ophthalmic tumors.
ro·sette (r -z t )n. 1. The segmented or mature phase of Plasmodium malariae. 2. A grouping of cells characteristic of neoplasms of neuroblastic or neuroectodermal origin, in which a number of nuclei form a ring from which neurofibrils extend to interlace in the center. |
rosette
[rōzet′]
1 any structure resembling a rose.
2 a sporulating body of a malarial parasite.
Rosette
A term for a garland-like arrangement of structures, cells or bodies around a central point or blood vessel, usually seen by light microscopy
rosette [ro-zet´]
1. any structure or formation resembling a rose.
2. the clusters of polymorphonuclear leukocytes around a globule of lipid nuclear material, as observed in the test for disseminated lupus erythematosus.
3. a figure formed by the chromosomes in an early stage of mitosis.
rosette
any structure or formation resembling a rose, such as (1) the clusters of polymorphonuclear leukocytes around a globule of lipid nuclear material, as observed in the test for disseminated lupus erythematosus, or (2) a figure formed by the chromosomes in an early stage of mitosis.
rosette of Furstenberg
the white ridges of mucous membrane that radiate from the internal orifice of the teat of ruminants.
rosette inhibition test
used to detect the presence of 'early pregnancy factor' but has problems of application and limited usefulness.
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