Suspicious urinary cytology with negative evaluation for malignancy in the diagnostic investigation of haematuria: how to follow up?
Aims: To define the natural history of patients with suspicious urinary cytology and negative initial evaluation for malignancy in the investigation of haematuria. Patients and methods: Data from the hospital information support system on urinary cytology examinations carried out at one centre were audited over a period of 24 months. There were 102 patients who had suspicious urinary cytology for malignant cells with negative initial evaluation. Follow up investigations, treatment, and final outcome were noted. Results: There were 102 patients with suspicious urinary cytology and negative initial evaluation for malignancy in 24 months, with a mean follow up of 15.7 months. Seventy patients had no obvious pathology on initial investigations. Forty one patients were found to have urological malignancies (29 bladder, eight ureteric, and four prostate) on follow up. All patients diagnosed as having urothelial malignancies on follow up had either persistent suspicious cytology (29) or recur
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