title: Grading of transitional cell tumours of the urinary tract by urinary cytology.
abstract: 1122 cytological diagnoses have been made on 2500 Papanicolaou stained cytological slides from Patients with urothelial carcinomas. The cytological accuracy was 78% for G1 tumours, 94% for G2 and 96% for G3 carcinomas. A histologically diagnosed G1 carcinoma was cytologically G1 in 81% of cases, a G2 carcinoma was recognized in 64% and G3 carcinoma in 48%.
mesh_terms: D002295:Carcinoma, Transitional Cell / Q000473:pathology*; D003581:Cytodiagnosis; D006801:Humans; D014556:Urine / Q000166:cytology*; D014571:Urologic Neoplasms / Q000473:pathology*