touch preparation


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touch preparation

1. The dabbing of a clinical specimen, e.g., the cut surface of an organ or tissue, onto a microscope slide to distribute a thin layer of cells for microscopic examination.
2. Any slide so obtained and prepared for pathological analysis.
See also: preparation
Medical Dictionary, © 2009 Farlex and Partners
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b, Touch preparation readily distinguishes this as a meningioma with the tight whorls and clusters of cells.
Discordant Cases: Intraoperative Touch Preparation Versus Final Diagnosis of Sentinel Lymph Nodes (SLN) on Hematoxylin-Eosin Permanent Section Intraoperative Final Size of SLN Count SLN Count Metastasis (No.
A visible nucleolus is present in both the CTCs and the cells shown from the touch preparation of the original needle biopsy from 4 years prior.
Touch preparations of endometrial cancer tissue samples were obtained by lightly pressing the freshly cut tumor surface on clean glass microscope slides, thus generating a tumor cell imprint.
FISH analysis in cell touch preparations and cytological specimens from formalin-fixed fetal autopsies.
Thin blood films and touch preparations from the liver, spleen and kidneys were fixed in absolute methanol and stained with phosphate buffered (pH 7,4) 10% Giemsa for one hour.
Giemsa-stained touch preparations demonstrate cytoplasmic granules.
Since examination facilities or wards usually do not have the material to do direct touch preparations onto EM grids, many health officials advocate placing samples into transport medium.