the cells in the anterior chamber ghost erythrocytes?
erythrocytes from an anterior chamber paracentesis specimen.
the cells in the anteior chamber macrophages that have engulfed high
molecular-weight lens protein?
from an anterior chamber paracentesis. The macrophages are filled
with granular material from a patient with a hypermature cataract
and phacolytic glaucoma.
anterior segment surgery, the intraocular pressure may be high or
the surgeon may observe a persistent, chronic anterior chamber "cell
and flare". If the cells in the aqueous appear to be large, suspect
epithelial downgrowth and consider a diagnostic anterior chamber paracentesis.
epithelial cell from an anterior chamber paracentesis. The ophthalmologist
noticed "very large cells" as part of a persistent anterior
chamber cell and flare. The "very large cells" were squamous
epithelial cells as illustrated here and the patient had epithelial
mass in the iris or ciliary body may shed cells into the aqueous which
may be captured and identified after anterior chamber paracentesis.
may be helpful to hand the syringe directly to a pathology or cytology
a technician is not available, or if the aspiration is being performed
in a private office setting or surgical center, one may follow these
proceeding with the anterior chamber paracentesis, have a suitable
fixative on hand (Saccomanno fluid works well or one may use 95%
ethanol) and a small vial with a cap that can be screwed on tightly.
paracentesis procedure itself usually yields only 0.15 ml (the total
volume of the anterior chamber is only about 0.3 ml). After removing
the syringe from the eye, aspirate an amount of fixative equal to
that in the syringe and flush the contents of the syringe through
the needle used for aspiration into the collection vial.
sure the cap on the vial forms a tight seal before sending
the specimen for processing and interpretation.
may be processed by a cytospin preparation. Slides may be stained
with the Papanicolaou stain or even with hematoxylin-eosin.
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