What are the lobes of the prostate?

What are the lobes of the prostate?

The prostate is divided into several lobes: the anterior lobe, the median lobe, the lateral lobes (left and right lobes), and the posterior lobe. The prostate is also divided, by scientists, into different zones according to their function: the central zone (CZ), peripheral zone (PZ), and transitional zone (TZ).

Which lobe of the prostate is usually involved in cancer?

Adenocarcinoma of the prostate typically begins in the posterior lobe. The gland may be large, asymmetrical, or hard; or the cancer may be too small to palpate. Occasionally, there will be induration of a lateral lobe with obliteration of the lateral sulcus.

Which lobe of the prostate is usually involved in BPH?

Conclusion. An enlarged median lobe is important in the setting of BPH and should be considered in treatment planning.

Which lobe of prostate is largest?

peripheral zone
The peripheral zone: this is the largest, and is located at the back of the prostate near the rectal wall.

Does the prostate have 3 lobes?

The prostate gland is about the size of a walnut. The prostate is partly muscular and partly glandular. It has tubes (ducts) that open into the prostatic part of the urethra. It is made up of 3 lobes: a middle lobe, left lobe, and right lobe.

How many lobes does a male prostate have?

Lobes of the Prostate The anatomy of the prostate is made up of three lobes: the central lobe and lobes on either side called the anterior lobes. The central lobe of the prostate is pyramid-shaped and rests between the ejaculatory ducts and the urethra.

How many zones does prostate have?

Historically, the prostate has been divided into 3 zones: (1) transition zone, (2) central zone, and (3) peripheral zone. The transition zone accounts for 10% of the prostatic glandular tissue and 20% of the adenocarcinomas. The prostate consists of approximately 70% glandular tissue and 30% fibromuscular stroma.

Which zone of prostate is affected by BPH?

The transition zone is the exclusive site of origin of benign prostatic hyperplasia (BPH). A subset of prostate cancers arises in this zone as well. Most are found incidentally at transuretral resection (TUR).

How many lobes are in the prostate gland?

The anatomy of the prostate is made up of three lobes: the central lobe and lobes on either side called the anterior lobes. The central lobe of the prostate is pyramid-shaped and rests between the ejaculatory ducts and the urethra.