出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2013/08/11 11:48:52」(JST)
Prostatitis | |
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Classification and external resources | |
Micrograph showing an inflamed prostate gland, the histologic correlate of prostatitis. A normal non-inflamed prostatic gland is seen on the left of the image. H&E stain.
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ICD-10 | N41 |
ICD-9 | 601 |
DiseasesDB | 10801 |
MedlinePlus | 000524 |
eMedicine | emerg/488 |
MeSH | D011472 |
Prostatitis is inflammation of the prostate gland. Prostatitis is classified into acute, chronic, asymptomatic inflammatory prostatitis, and chronic pelvic pain syndrome.
In the United States, prostatitis is diagnosed in 8 percent of all urologist visits and 1 percent of all primary care physician visits.[1]
The term prostatitis refers, in its strictest sense, to histological (microscopic) inflammation of the tissue of the prostate gland. Like all forms of inflammation, it can be associated with an appropriate response of the body to an infection, but it also occurs in the absence of infection.
In 1999, the National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) devised a new classification system.[2][3] For more specifics about each type of prostatitis, including information on symptoms, treatment, and prognosis, follow the links to the relevant full articles.
Category | Pain? | Bacteria? | WBCs? | NIDDK (Current) |
Description | Meares/Stamey (Old) |
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I | yes | yes | yes | Acute prostatitis | Acute prostatitis is a bacterial infection of the prostate gland that requires urgent medical treatment. | Acute bacterial prostatitis |
II | ± | yes | yes | Chronic bacterial prostatitis | Chronic bacterial prostatitis is a relatively rare condition that usually presents as intermittent urinary tract infections. | Chronic bacterial prostatitis |
IIIa | yes | no | yes | Inflammatory CP/CPPS | Chronic prostatitis/chronic pelvic pain syndrome, accounting for 90%-95% of prostatitis diagnoses,[4] used to be known as chronic nonbacterial prostatitis. | Nonbacterial prostatitis |
IIIb | yes | no | no | Noninflammatory CP/CPPS | Prostatodynia | |
IV | no | no | yes | Asymptomatic inflammatory prostatitis | Asymptomatic inflammatory prostatitis patients have no history of genitourinary pain complaints, but leukocytosis is noted, usually during evaluation for other conditions. Between 6-19% of men have pus cells in their semen but no symptoms.[5] | (none) |
In 1968, Meares and Stamey determined a classification technique based upon the culturing of bacteria.[6] This classification is no longer used.
The conditions are distinguished by the different presentation of pain, white blood cells (WBCs) in the urine, duration of symptoms and bacteria cultured from the urine. To help express prostatic secretions that may contain WBCs and bacteria, prostate massage is sometimes used.[7]
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リンク元 | 「前立腺炎」「acute bacterial prostatitis」 |
拡張検索 | 「chronic bacterial prostatitis」「asymptomatic inflammatory prostatitis」 |
型 | 分類 | 症状 | |
I | 急性細菌性前立腺炎 | 発熱、排尿痛、全身倦怠で急激に発症 | |
II | 慢性細菌性前立腺炎 | Iが慢性化したもの。再発性細菌感染としての症状を認める。 | |
III | 慢性非細菌性前立腺炎 | 頻尿・残尿感、排尿時痛(不快感)、ソケイ部・会陰部・尿道部痛など多彩。 | |
慢性骨盤内疼痛症候群/前立腺関連疼痛症候群 | |||
A 炎症性 | |||
B 非炎症性 | |||
IV | 無症候性炎症性前立腺炎 | たまたま採取した前立腺液中に白血球を認めて発見されるなど、偶然発見されることがあるが、現時点では積極的に治療の必要はない。 |
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