Prostatic stromal nodules are type of nodule that can arise from benign prostatic hyperplasia. They may comprise of immature mesenchymal, fibroblastic, fibromuscular and smooth muscular elements.
Radiographic features
MRI
They are typically seen in the transitional zone or occasionally may present at ectopic lesions. Usually has a round/oval shape, well defined margins and a thin surrounding pseudo-capsule.
T2: typically low T2
DWI / ADC: low signal in the ADC map
T1 (post contrast): can type 3 enhancement (early wash-in and rapid wash-out) 4
Differential diagnosis
They may mimic prostatic carcinoma in some situations 4.
For more invasive lesions consider other prostatic stromal lesions
Unable to process the form. Check for errors and try again.