What is diffuse changes of the prostate?
- How does the structure of the prostate?
- ultrasound criteria of healthy tissue
- ultrasound criteria for pathological process
Diffuse changes in the prostate gland - is a degenerative disorders of structure prostate parenchyma due to any disease (inflammation, tumor, abscess, etc..d.).
Identify pathological lesions in the tissue is possible with ultrasound.Through this method, the physician can differentiate a cyst from cancer, acute prostatitis is a chronic process, abscess from adenoma.Each has a distinct disease (pathognomonic) prostate diffuse changes which relate to ultrasound criteria.
How does the structure of the prostate?
Most diseases of the genitourinary system leads to disruption of the tissue structure.adjustment mechanism associated with:
- metabolic changes at the cellular level;
- growth of connective tissue;
- violation of the blood supply to the body;
- inflammation that causes tissue seal;
- germination tumors in the healthy tissue.
Depending on the type of violation, are following diffuse changes: atrophy, dysplasia, hypoplasia, hyperplasia.
most often in US custody meet the concept of "dysplasia" and "hyperplasia", which are not independent diseases, but only indicate the presence of a pathological process.
dysplasia of the prostate gland - is the process of adjustment to normal healthy tissue at the cellular level in the atypical, which is not typical for this body.
Depending on the extent of the changes, dysplasia is classified into an easy, moderate to severe.The first two species characterized by long inflammatory process, and the latter is a kind of messenger precancerous condition of the prostate gland.
Eventually dysplasia can regress.But if the disease process is not affected, then there is a risk of developing cancer.
ultrasound criteria of healthy tissue
unmodified parenchyma of the prostate is characterized by:
- homogeneous structure;
- precise contours;
- volume up to 25 smᶟ;
- transverse dimension of 30-45 cm, the front-rear - 13-25 cm;
- divided into 5 zones;
- visualization seminal vesicles;
- normal density.
If some criterion is changed, it is necessary to speak about the presence of diffuse-focal changes in the prostate.
ultrasound criteria for pathological process
To assess the state of the tissue, in addition to the density, structure and uniformity, use ehopriznaki diffuse changes that help more accurately conclude ultrasound.
each disease characterized by the presence ehopriznakov:
- in acute prostatitis echogenicity significantly reduced;
- in the presence of an abscess hypoechoic zone combined with anehogennoe;
- for chronic prostatitis there is increased echogenicity;
- anechoic zones are defined with cysts.
Ultrasound most diseases marked heterogeneous tissue structure that is associated with the presence of fibrosis, calcifications, edema, infiltration of pus.
important point is the diagnosis of prostate cancer.It is characterized by a certain ultrasound picture - the presence of hypoechoic areas on the periphery.But the early stages of echogenicity may be unchanged, making it difficult to visualize.
Chronic prostatitis is characterized by the zonal education varying echogenicity, presence of calcifications in ducts, sealing and increased capsule veins, sclerosing sprawl.
When parenchymatous prostatitis revealed heterogeneous ehopolozhitelnye education, which are small pustules.The gland increased in size, indicating the acute course of the process, the presence of inflammatory edema.Prostate configuration changed, histoarchitectonics (tissue structure) is broken.
Early diagnosis prevents the development of prostate abscess.In the later stages of diffuse focal changes can progress, which ultimately leads to a vast purulent inflammation.
US included in the mandatory list of diagnostic procedures for diseases of the genitourinary system.However, it should be remembered that ultrasound criteria can not unequivocally confirm or refute the diagnosis, they only inform the doctor about the functional and structural state of the body.