system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Hypoechoic lesion within prostate in USG seen in – a) Adenocarcinomab) Normal prostate tissuec) Infertilityd) Urethral obstructione) BPH
assistant
The correct answer is  Most of the prostatic carcinomas (adenocarcinomas) are lzypoechoic, but may be hyperechoic or isoechoic.
Echogenicity of BPH varies, it may be diffusely homogeneous and hypoechoic or hyperechoic, but some degree of inhomogeniety is noted in most cases.