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South African Journal of Surgery

On-line version ISSN 2078-5151
Print version ISSN 0038-2361


PLUKE, KD  and  KAESTNER, L. Lessons from a pilot study of screening for upper tract urothelial cell carcinoma in Lynch syndrome. S. Afr. j. surg. [online]. 2021, vol.59, n.2, pp.65a-65d. ISSN 2078-5151.

BACKGROUND: Lynch syndrome is a hereditary disorder, with a very high risk of developing colorectal carcinoma (CRC) and a predilection to develop other cancers, including upper tract urothelial carcinoma (UTUC). We aimed to assess the prevalence of UTUC in a Lynch syndrome cohort undergoing screening for CRC, to determine the need for a UTUC screening programmeMETHODS: Lynch syndrome patients were screened with urine dipstick for microscopic haematuria. Patients with confirmed microhaematuria were offered urine cytology, microscopy and culture, ultrasound (US) of their upper tracts and flexible cystoscopyRESULTS: Of the 89 patients screened, 86 had an MLH1 mutation and two had an MSH2 mutation. Eleven of the 12 patients who had microscopic haematuria were female. Ten patients had urinary tract infections. One patient had follicular cystitis and another had a simple renal cyst. No patients had hydronephrosis on ultrasound. All urine cytology specimens were negative for malignancyCONCLUSION: No cases of UTUC were detected in our cohort during this study. A more rational screening protocol in this group may be to screen patients for UTUC with known MSH2 mutations at an earlier age (over 35

Keywords : upper tract urothelial cell carcinoma; integrated screening; existing colorectal malignancy screening programme; Lynch syndrome.

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