Cell blocks in urine cytopathology: do they add value to the diagnosis? A pilot study
| Autor: | Donna Russell, Bennett L. Wilson, Shawn K. Evans, Tanupriya Agrawal |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
Male medicine.medical_specialty 030209 endocrinology & metabolism Pilot Projects Urine Urinalysis Gastroenterology Pathology and Forensic Medicine Specimen Handling 03 medical and health sciences 0302 clinical medicine Clinical history Predictive Value of Tests Internal medicine medicine Humans Cell block Early Detection of Cancer Urothelial carcinoma Urine cytology Aged Retrospective Studies Aged 80 and over Retrospective review Microscopy medicine.diagnostic_test business.industry Carcinoma Reproducibility of Results Middle Aged Urinary Bladder Neoplasms Cytopathology 030220 oncology & carcinogenesis Female Neoplasm Grading Urothelium business |
| Zdroj: | Journal of the American Society of Cytopathology. 10(1) |
| ISSN: | 2213-2945 |
| Popis: | Introduction The utility of cell block (CB) preparation is well established in cytopathology. Despite 23.3% of College of American Pathologists–accredited laboratories using CB with liquid-based preparations on urine cytology (UC) cases, there are very few studies on their performance. To determine their usefulness, we conducted a retrospective review of UC cases that received CB. Materials and methods We identified 27 UC cases with ThinPrep (TP) and CB preparation between 2016 and 2020 at our institution. Clinical history and follow-up data were compiled. A blinded review of TP alone, and TP together with CB, was performed by 2 pathologists and 2 cytotechnologists. Diagnoses were rendered in accordance with The Paris System for Reporting Urine Cytology. Results Blood and acute inflammation were common background elements in cases that received CB preparation. In total, CB upgraded the diagnosis in 7 of 27 cases (26%). The maximum utility of CB preparation was seen in indeterminate cases where 60% (6 of 10) were upgraded, including 71% (5 of 7) of atypical urothelial cells (AUC) and 30% (1 of 3) of suspicious for high-grade urothelial carcinoma (HGUC). One case (1 of 12, 8%) diagnosed as negative for HGUC on TP was diagnosed as low-grade urothelial neoplasia on CB. Conclusions Our results demonstrate that adjunct use of CB preparation aids in a definitive diagnosis on AUC category and may be helpful in cases with cell clusters or tissue fragments, or cases suspicious for HGUC. Further correlation studies are warranted in this area to expand our knowledge about the utility of CBs in urine cytology. |
| Databáze: | OpenAIRE |
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