Papanicolaou stain

(redirected from Pap stain)

Pa·pa·ni·co·la·ou stain

a multichromatic stain used principally on exfoliated cytologic specimens and based on aqueous hematoxylin with multiple counterstaining dyes in 95% ethyl alcohol, giving great transparency and delicacy of detail; important in cancer screening, especially of gynecologic smears.
Farlex Partner Medical Dictionary © Farlex 2012


George N., Greek-U.S. physician, anatomist, and cytologist, 1883-1962.
Papanicolaou examination
Papanicolaou smear - Synonym(s): Pap smear
Papanicolaou smear test - Synonym(s): Pap test
Papanicolaou stain - a multichromatic stain used in cancer screening, especially of gynecologic smears.
Papanicolaou test - Synonym(s): Pap test
Pap smear - vaginal or cervical cells obtained for cytological study. Synonym(s): Papanicolaou smear
Pap test - examination of cells stained with Papanicolaou stain. Synonym(s): Papanicolaou smear test; Papanicolaou test
Medical Eponyms © Farlex 2012
References in periodicals archive ?
Although the organisms are not stained by routine cytologic stains such as the Pap stain and DQ stains, they can be visualized on DQ stain as negative images, often filling the cytoplasm of macrophages.
Both Pap stain of the vitreous as well as hematoxylin and eosin stain of the brain tissue supported the diagnosis of Aspergillus as well.
All the ultrasound-guided FNAC smears were stained with Pap stain, HE stain, and Leishman stain.
(c) FNAC was performed (original magnification, x25; Papanicolaou (Pap) stain) and revealed tumor epithelial part (arrows) with squamoid epithelial cells (arrowhead, inset in (c), original magnification, x100; Pap stain) and myoepithelial cells (arrow, inset in (c)), thus suggesting the diagnosis of pleomorphic adenoma.
The samples are also screened for cancer with Pap stain analysis and CT scans.</p><p>Pending FDA approval, CyPath is for investigational use only, Biomoda said.</p>
Pap stain is also stable over time, allowing smears to be stored for later review.
Diagnoses were made by pathologists, cytotechnologists, or laboratories from slides stained by either the modified Giemsa or Pap stain method.