Benign prostate hypertrophy (MRI)

Case contributed by Ian Bickle
Diagnosis almost certain

Presentation

PSA 7.8. Right lobe nodule on PR examination.

Patient Data

Age: 75 years
Gender: Male

Prostate volume 130mls.   PSA density 0.06ng/ml.

Virtually all of the prostate gland is composed of BPH with a thin residual peripheral zone. Median lobe hypertrophy protruding into the urinary bladder.

No significant PIRADS abnormality.

Normal seminal vesicles. No pelvic lymphadenopathy. No sinister bone lesion.

Diffuse bladder wall hypertrophy. 7 mm left-sided bladder diverticulum.

Case Discussion

The typical appearances of benign prostate hypertrophy on MRI with media lobe hypertrophy protruding into the urinary bladder and the compression and thinning of the peripheral zone.

What as first appears like a concerning PSA value in patients with large glands becomes a very low PSA density for the purposes of calculating the likely risk of malignancy.

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