Ch. 12 Prostate Anatomy

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The anterior fibromuscular stroma is not affected by what 3 disorders/ diseases?

- cancer -prostatitis -hyperplasia

Anterior fibromuscular stroma

-anterior surface of the prostate

TRUS pre-exam preparation before needle biopsy includes

-cleansing enema -pre and post prophylactic antibiotics

PSA occurs with what diseases or disorders?

-prostate cancer -BPH -Prostatitis

The central zone is what percentage of the prostate gland?

25%

The prostate measures?

3x4x2 cm

What is the level for PSA that could indicate a benign or potential malignancy?

4-10 ng/ mL

The transitional zone is what percentage of the prostate tissue?

5%

What is the normal PSA levels?

<4 ng/mL

What is the level for PSA that could indicate most likely cancer?

> 10ng/ mL

Name of shadowing created by calcification in the area of the urethra and verumontanum

Eiffel Tower sign

What is the name of the duct that goes through the central zone and empties into the urethra?

Ejaculatory duct

Anterior fibromuscular stroma is what kind of tissue?

Non-glandular tissue

What is the name of the enzyme that elevates in association with prostate carcinoma?

Prostatic Acid Phosphatase

What is the name of two sac-like out-pouchings of the vas deference ?

Seminal vesicles

What is the name for longitudinal ridge within the urethra?

Verumontanum

Why is prostatic acid phosphatase not a routine screening test ?

because it may be elevated with other conditions

The transitional zone is origin site for ---

benign prostatic hyperplasia

Ejaculatory ducts pass through what zone?

central zone

What is the name for calcifications usually seen in the inner gland of the prostate?

corpora amylacea

The apex of the prostate is the ---

inferior portion of the prostate gland

The prostaticovesical branches from the --

internal iliac artery

In what position is a patient placed for a TRUS guided needle biopsy?

left lateral lichotomy or knee-elbow position

The central zone echogenicity is greater than what zone?

peripheral

PSA->

prostate-specific antigen

What supplies blood to the prostate?

prostaticovesical

What is located anterior to the prostate?

pubic bone

What is located posterior to the prostate?

rectum

The prostate is located int the _____

retroperitoneum

The central zone of the prostate is located ----

superior and at the base

The base of the prostate is the ---

superior portion of the gland

Where are the seminal vesicles located in relation to the prostate?

superior/ posterior aspect of the prostate

Name of separation between the inner and outer zone of the gland?

surgical capsule

What is located on either side of the verumontanum?

the orifices of the ejaculatory ducts

TRUS >

transrectal ultrasound

What is located superiorly to the prostate?

urinary bladder

What is located inferiorly to the prostate?

urogenital diaphragm

The prostate is ___-shaped.

walnut


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