Abstract
Purpose
The outcome of CT-guided biopsy in patients with suspected retroperitoneal fibrosis (RF), regarded as technically challenging, remains unclear. This study aimed to evaluate the results of CT-guided biopsy in patients with lesions considered in the differential diagnosis of RF and compare them with results from patients with other retroperitoneal lesions.
Materials and Methods
Patients who underwent CT-guided biopsy of retroperitoneal lesions between January 2010 and September 2018 were retrospectively reviewed. The study cohort with retroperitoneal lesions surrounding the infra-abdominal aorta, iliac vessels, and/or ureters was divided into two groups: Group F included patients with lesions for which RF was considered in the differential diagnosis, and Group C comprised patients with a retroperitoneal mass or lymphadenopathy. Lesion size and depth, and biopsy details including technical success, position, procedure time, diagnostic yield, and complications between the two groups were compared.
Results
Group F included 27 patients (mean age 68.5 years ± 11.6, 17 male) and Group C 30 patients (mean age 65.0 years ± 11.8, 16 male). The short axis was significantly smaller in Group F than in Group C (19 mm vs 26 mm, P = 0.041), and procedure time was significantly longer in Group F than in Group C (31.5 min ± 13.2 vs 20.3 min ± 8.4, P = 0.001). Technical success rate (93% vs 100%), accuracy (93% vs 93%), and complications (3.7% vs 10%) between Groups F and C were not significantly different.
Conclusions
CT-guided biopsy of patients with suspected RF is considered safe and effective.
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Abbreviations
- CT:
-
Computed tomography
- IgG:
-
Immunoglobulin
- PNB:
-
Percutaneous needle biopsy
- RF:
-
Retroperitoneal fibrosis
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Acknowledgements
We thank Hugh McGonigle, from Edanz Group (www.edanzediting.com/ac), for editing a draft of this manuscript.
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Koike, Y., Matsui, S., Takase, K. et al. CT-Guided Percutaneous Needle Biopsy in Patients with Suspected Retroperitoneal Fibrosis: A Retrospective Cohort Study. Cardiovasc Intervent Radiol 42, 1434–1440 (2019). https://doi.org/10.1007/s00270-019-02266-x
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DOI: https://doi.org/10.1007/s00270-019-02266-x