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Balkan J Med Genet. 2018 Dec 31;21(2):49-53. doi: 10.2478/bjmg-2018-0027. eCollection 2018 Dec.

The Role of Next Generation Sequencing in the Differential Diagnosis of Caroli's Syndrome.

B S1, D M1, A H2, G B2, B P2.

Author information

1
Internal Clinic, Department of Gastroenterohepatology, Clinical Centre of Montenegro, Podgorica, Montenegro.
2
Clinical Institute of Medical Genetics, University Medical Centre Ljubljana, Ljubljana, Slovenia.

Abstract

We report the case of a 41-year-old man on conservative treatment for more than 20 years for chronic renal insufficiency, chronic hepatitis and recurrent cholangitis. Following lengthy and extensive diagnostics, the differential diagnosis included primary sclerosing cholangitis and Caroli's disease (CD). To solve the diagnostic challenge, next generation sequencing (NGS) was performed to distinguish between the disorders possibly present in the patient. The diagnosis of CD became evident after two rare known pathogenic mutations were detected in the poly-ductin 1 (PKHD1) gene, c.370C>T (p.Arg124Ter) and c.4870C>T (p.Arg1624Trp). In this case, NGS was instrumental in solving the diagnostic challenge, allowing differentiation among the proposed genetic and non-genetic ethiologies.

KEYWORDS:

Caroli’s syndrome (CS); Polycystic kidney disease; Polyductin 1 (PKHD1) gene

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