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<div align = "justify"> ŠQuИ it means diagnСstico precocious? </or> DiagnСstico precocious it is diagnСstico of one cАncer before it has given sМntomas. DiagnСstico precocious a person can carry out it or bien═derivarse of the calls campaЯas population of screening or diagnСstico precocious. In these campaЯas many people are summoned for the risk of developing determined cАncer. ══ to carry out it it is necessary to have one exploraciСn (for example, mamografМa in cАncer of breast) or anАlisis of blood-PSA (in cАncer of prСstata) or anАlisis of secret blood in dregs (in cАncer of intestine), which is existed demostrado═efectiva in detecciСn of initial tumors. But, ademАs, the test applied poblaciСn to the risk, it must serve to to diminish the mortality that on the studied group produces saying cАncer. The case quizАs mАs well-known is of cАncer of breast, in that, by means of the calls campaЯas of screening, them mamografМas in women without cАncer of apparent breast, they allow to detect cАncer of breast in very precocious and curable stages of the illness. mamografМa asМ employee allows to diminish the mortality in 30 % in women in ages between 50 and 65 aЯos (to see in <to href = "../external.html?link=http://www.cancermama.org/"> www.cancermama.org </to>). ═ ŠHay something similar in cАncer of prСstata? </or> East is a topic polИmico. On one hand, the way is had for diagnСstico precocious of cАncer of prСstata, that is the PSA (vИase mАs pass), but, on the other hand them campaЯas with determinaciСn of the PSA and diagnСstico precocious of cАncer of prСstata, they have not demonstrated of a way categСrico, up to the date, which they were serving to diminish the mortality because of it cАncer. It Is for it that there is no world agreement in recommending all the men at the risk of developing cАncer of prСstata, that realize periСdicamente a PSA. But at individual level, FEFOCrecomienda who with age superior to 50 aЯos practises on every man an annual PSA (or of 40 aЯos, if it has familiar saying precedents cАncer). ═ let's Speak a little about the PSA </or> The PSA (known by the initials of his denominaciСn in inglИs, or prostate specific antigene, antМgeno especМfico of prСstata) he has supposed one autИntica revoluciСn in diagnСstico precocious of this one cАncer. The PSA is produced only by a textile of prСstata, his epithelium, ═ for it it is so especМfico. But, and this is very important, the PSA is especМfico of prСstata, not of cАncer of prСstata. Therefore, any increase of tamaЯo of this one glАndula (be for a benign motive - for example, inflamaciСn or prostatitis - or malignantly-cАncer) they can make to increase el═nivel of PSA. In short, the increase of PSA is alert towards a problem in prСstata but it does not establish one diagnСstico. For it, other means are needed. ═ Š CСmo does the PSA decide? </or> With a simple one anАlisis of blood. Š CuАles are his values? </or> The analysts give the results in nanograms per milliliter (ng/ml). On having increased normally tamaЯo of prСstata on having been increase the age of the person, it is considered that a normal PSA must be lower than 2,5 in 40-49 aЯos of age; of 3,5 in 50-59; of 4,5═de 60-69; and less than 6,5 in 70 and 79 aЯos of age. Inside every age group, a PSA level over the alert normality towards one alteraciСn, benign or malignant ═ As everyone knows, in Medicine there are always exceptions what these numbers it is necessary to take them like orientativas and sometimes it is possible to diagnose cАncer of prСstata with numbers mАs═bajas that the due ones. . major All that is the level of the PSA, major is the risk, but, we insist, ═el PSA for sМ is never only a definitive test but the important one seЯal of alert. Š it Can, asМ, increase the PSA without there being cАncer of prСstata? </or> SМ, in effect. For it, there is dissuaded a PSA is realized if they happen some / some of the following circumstances: a). EyaculaciСn the PSA level increases it temporarily, for what two dМas before anАlisis must avoid the sexual activity. b) TambiИn they it can increase it inflamaciСn of prСstata, his infecciСn, the hiperplasia (I increase of tamaЯo) benign of prСstata and the rectal tact. c) Some medicines, type finasteride that is used in the benign hiperplasia, tambiИn can increase it. Š is QuИ the free PSA? </or> Is the PSA that circulates in the blood, without being joined to proteМnas, as it is the case of the PSA till now described. ═ Between 65 % and 90 % of the PSA circulates ligature to proteМnas while the rest constitutes the free PSA or not ligature. The percentage of free PSA is major in benign cases and mАs low in malignant cases. Š CuАl is the utility of the free PSA? </or> Especially in the doubtful cases (PSA between 4 and 10 ng/ml), a low percentage of free PSA on the whole of PSA suggests as mАs probably diagnСstico of cАncer. On the contrary, a high free PSA, it goes mАs in favor of a benign process. Therefore, it is not enough to determine the entire PSA but it is necessary to request tambiИn the free PSA. are ŠCuales the contributions of the PSA in cАncer of prСstata? </or> Since iniciС his realizaciСn dИcada of the 90 of the 20th century, the model of presentaciСn has changed in it radically of cАncer of prСstata. In effect, earlier, her mayorМa of men acudМan to the first one diagnСstico of this one cАncer with sМntomas (pains) of afectaciСn of the skeleton, confirmАndose his afectaciСn by means of radiografМas. it was a question, then, of incurable cases. East model has turned. Today in dМa, her mayorМa of men with cАncer of prСstata, when they are diagnosed, cАncer estА located in prСstata and it is curable. In fact, in the Зltimos aЯos, the mortality for cАncer of prСstata estА diminishing. QuizАs all this progress should not only the PSA to itself. But there is one relaciСn very direct between his apariciСn and her disminuciСn of mortality. The PSA, Štiene other applications? </or> The PSA is much Зtil to continue it evoluciСn of the patients despuИs of the treatment. While the PSA is supported in lМmites of the normality, the illness has not been not reproduced usually. On the contrary, if in determinaciСn periСdica of PSA, it is observed that it has increased, it is necessary to realize tests and explorations to see if the illness has been reproduced. Therefore, a person treated for cАncer of prСstata must be practised anАlisis periСdicos of his PSA. </div> </div>

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