CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2020; 30(01): 102-104
DOI: 10.4103/ijri.IJRI_469_18
Case Report

18F-FDG PET/CT in cyst infection in autosomal dominant polycystic kidney disease

Meghana Prabhu
Department of Nuclear Medicine, A.I.I.M.S, New Delhi, India
Nishikant A Damle
Department of Nuclear Medicine, A.I.I.M.S, New Delhi, India
Animesh Ray
Department of Medicine, A.I.I.M.S, New Delhi, India
Devasenathipathi Kandasamy
Department of Radiodiagnosis, A.I.I.M.S, New Delhi, India
› Author Affiliations
Financial support and sponsorship Nil.


Infection of a cyst within an autosomal dominant polycystic kidney disease (ADPKD) is a serious complication. Diagnosis with conventional imaging techniques such as ultrasonography, computed tomography (CT), and magnetic resonance imaging can be sometimes challenging. The definite diagnosis is analysis of the cyst fluid, but cyst punctures can cause bleeding, rupture, and contamination of adjacent cysts. Recently, FDG PET/CT has been reported as a sensitive tool for detection of cyst infection. We describe a case of 63-year-old woman with infected cysts in the left kidney, in whom accurate diagnosis was made on FDG PET/CT. FDG PET/CT is an important investigation in patients with fever of uncertain etiology, where renal cyst infection is a possible cause, but other etiologies also need to be ruled out.

Publication History

Received: 05 April 2019

Accepted: 15 November 2019

Publication Date:
19 July 2021 (online)

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