Published in:
08-09-2022 | Magnetic Resonance Imaging | Editorial Comment
Towards a judicious use of perilesional biopsy in the era of MRI-targeting, parting of the ways from systematic prostate biopsy
Authors:
Anwar R. Padhani, Steven S. Raman, Ivo G. Schoots
Published in:
European Radiology
|
Issue 11/2022
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Excerpt
There are many reasons why MRI-targeted biopsies (MRTB) in men with positive MRI scans fail to detect high-grade cancers that are found incidentally by concurrent systemic biopsies. Multiple factors often acting together contribute to the missed diagnoses of ISUP GG ≥ 2 cancers and/or tumour under grading [
1]. The most obvious cause is an MRI invisible lesion on a background of transition zone hyperplasia, peripheral zone scarring/inflammation, or in difficult to evaluate regions such as adjacency to the ejaculatory ducts, central zone, bladder, low apex, or the anterior fibromuscular stroma. Some histologic subtypes of GG ≥ 2 prostate cancers are also difficult to see such as non-mass forming (microfocal) GG2 cancers and small cribriform tumours. Inevitably, radiologic perception errors also contribute, related to image quality, observer experience and variability, and misclassifications errors. …