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CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2021; 31(04): 1065-1069
DOI: 10.1055/s-0041-1741101
Case Report

Detection of Ureteral Stump Transitional Cell Carcinoma, Presenting as Bone Metastases from Unknown Primary by 18F-FDG PET/CT: A Case Report with Review of Literature

Petya N. Nikolova
1   Clinic of Nuclear Medicine, 1Clinic of Imaging Diagnostics, University Hospital “Alexandrovska,” Sofia, Bulgaria
,
Valeria H. Hadzhiyska
1   Clinic of Nuclear Medicine, 1Clinic of Imaging Diagnostics, University Hospital “Alexandrovska,” Sofia, Bulgaria
,
Kiril B. Mladenov
1   Clinic of Nuclear Medicine, 1Clinic of Imaging Diagnostics, University Hospital “Alexandrovska,” Sofia, Bulgaria
,
Mihaela G. Ilcheva
1   Clinic of Nuclear Medicine, 1Clinic of Imaging Diagnostics, University Hospital “Alexandrovska,” Sofia, Bulgaria
,
Stefani Veneva
1   Clinic of Nuclear Medicine, 1Clinic of Imaging Diagnostics, University Hospital “Alexandrovska,” Sofia, Bulgaria
,
Svetla E. Dineva
1   Clinic of Nuclear Medicine, 1Clinic of Imaging Diagnostics, University Hospital “Alexandrovska,” Sofia, Bulgaria
,
Boris S. Mladenov
2   Clinic of Urology, UMHATEM “N.I. Pirogov,” Sofia, Bulgaria
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Abstract

A case of occult carcinoma of the ureteral stump is reported. A 67-year-old man presented with pain syndrome due to multiple bone metastases from unknown primary origin detected by previous imaging studies as magnetic resonance imaging, whole body contrast-enhanced computed tomography (CT), and technetium-99m methyldiphosphonate bone scan. He had undergone a right nephrectomy for a benign disease previously. He was referred to our department for an 18F-fluoro-2-deoxy-D-glucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) to help localize possible primary tumor. Our observations in this case show that the use of 18F-FDG PET/CT successfully and more accurately evaluated the overall tumor burden and led to a rapid decision of an adequate therapeutic approach.

Keywords

18F-FDG PET/CT - bone metastases - cancer of unknown primary - ureteral stump

Declaration of Patient Consent

The authors certify that they have obtained all appropriate patient consent forms. In the form, the patient(s) has/have given his/her/their consent for his/her/their images and other clinical information to be reported in the journal. The patients understand that their names and initials will not be published and due efforts will be made to conceal their identity, but anonymity cannot be guaranteed.


Financial Support and Sponsorship

Nil.




Publication History

Article published online:
10 January 2022

© 2022. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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