Touch imprint cytology: a practical step toward standardized rapid on-site evaluation
Seong Ji Choi · 2026
Read Touch imprint cytology: a practical step toward standardized rapid on-site evaluation by Seong Ji Choi (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/PMC13439287.txt.
Description
Choi wrote an editorial in 2026 on rapid on-site evaluation, the bedside check that tells endoscopists whether a needle sample from the pancreas holds enough tissue. Trials have questioned whether this check adds value with modern needles, and guidelines no longer urge routine use, yet many centres keep it. The editorial turns to how the check is done, comparing touch imprint cytology with spray and rinse methods in a study of 385 patients.
Choi explains that touch imprint sampling brushes the core's surface without breaking it apart, leaving tissue intact for later testing. Agreement with final diagnosis reached about eighty-eight in a hundred for larger lesions, and was higher with a thicker needle. Its weakness was a low negative predictive value, near half, so a blank read cannot rule out cancer. Choi presents the method as a strong gatekeeper for deciding extra needle passes, with caution for small lesions.
Catalog record
| CREATOR | Seong Ji Choi |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 7 KB |
| LICENSE | https://creativecommons.org/licenses/by/4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |