Is PSMA positive in both benign prostatic hyperplasia (BPH) and prostatic adenocarcinoma?

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Multiple Choice

Is PSMA positive in both benign prostatic hyperplasia (BPH) and prostatic adenocarcinoma?

Explanation:
PSMA expression isn't exclusive to cancer. The PSMA protein is present in normal prostate tissue and in benign conditions like BPH, as well as being overexpressed in many prostate cancers. So PSMA-based imaging can show uptake in both BPH and prostatic adenocarcinoma. The key point is that cancer usually shows higher, more focal uptake, while BPH tends to have lower or more diffuse uptake. In practice, interpretation combines uptake patterns with MRI, biopsy results, and clinical context to distinguish benign from malignant tissue.

PSMA expression isn't exclusive to cancer. The PSMA protein is present in normal prostate tissue and in benign conditions like BPH, as well as being overexpressed in many prostate cancers. So PSMA-based imaging can show uptake in both BPH and prostatic adenocarcinoma. The key point is that cancer usually shows higher, more focal uptake, while BPH tends to have lower or more diffuse uptake. In practice, interpretation combines uptake patterns with MRI, biopsy results, and clinical context to distinguish benign from malignant tissue.

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