Multiphase contrast-enhanced magnetic resonance imaging features of Bacillus Calmette-Guérin-induced granulomatous prostatitis in five patients

Korean Journal of Radiology : Official Journal of the Korean Radiological Society
Hiroshi KawadaHiroaki Hoshi

Abstract

To evaluate the multiphase contrast-enhanced magnetic resonance (MR) imaging features of Bacillus Calmette-Guérin (BCG)-induced granulomatous prostatitis (GP). Magnetic resonance images obtained from five patients with histopathologically proven BCG-induced GP were retrospectively analyzed for tumor location, size, signal intensity on T2-weighted images (T2WI) and diffusion-weighted images (DWI), apparent diffusion coefficient (ADC) value, and appearance on gadolinium-enhanced multiphase images. MR imaging findings were compared with histopathological findings. Bacillus Calmette-Guérin-induced GP (size range, 9-40 mm; mean, 21.2 mm) were identified in the peripheral zone in all patients. The T2WI showed lower signal intensity compared with the normal peripheral zone. The DWIs demonstrated high signal intensity and low ADC values (range, 0.44-0.68 × 10(-3) mm(2)/sec; mean, 0.56 × 10(-3) mm(2)/sec), which corresponded to GP. Gadolinium-enhanced multiphase MR imaging performed in five patients showed early and prolonged ring enhancement in all cases of GP. Granulomatous tissues with central caseation necrosis were identified histologically, which corresponded to ring enhancement and a central low intensity area on gadolinium-enhan...Continue Reading

References

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Citations

Nov 12, 2015·Current Opinion in Infectious Diseases·Bradley C Gill, Daniel A Shoskes
Sep 20, 2018·Radiology·Alberto Diaz de LeonIvan Pedrosa
Apr 10, 2019·The British Journal of Radiology·Su-Min LeeSidath H Liyanage
Feb 27, 2021·Clinical Radiology·A ShakurM G Harisinghani

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BETA
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