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Fig. 4 | Egyptian Journal of Radiology and Nuclear Medicine

Fig. 4

From: In prostatic transition zone lesions (PI-RADS v2.1): which subgroup should be biopsied?

Fig. 4

Multiparametric magnetic resonance image of a 61-year-old man with a left transition-zone nodule (serum prostate-specific antigen 5.318 ng/ml, apparent diffusion coefficient [ADC] 0.868). An axial T2-weighted image (T2WI) (a) and dynamic contrast-enhanced image (b) indicate an approximately 1 cm, heterogeneous, obscured, marginated nodule with minimal enhancement in the left transition zone (arrows), resulting in a T2WI score of 3. Diffusion-weighted imaging (DWI) (b = 1000) (c) demonstrated subtle iso-signal intensity at the corresponding nodule with low signal intensity on an ADC map (d), resulting in a DWI score of 3. This lesion was categorized as 3 according to PI-RADS v2.1 but as 3A according to PI-RADS v2.1-B. Transrectal ultrasound-guided prostate biopsy was performed. Pathology confirmed a benign hyperplastic nodule, composed of hyperplastic glands with papillary infoldings and lined by double-layered inner columnar and outer cuboidal epithelium (e)

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