Câncer de próstata

Descrição

Prostate cancer is a common disease that affects men, usually in middle age or later. In this disorder, certain cells in the prostate become abnormal, multiply without control or order, and form a tumour. The prostate is a gland that surrounds the male urethra and helps produce semen, the fluid that carries sperm.

Early prostate cancer usually does not cause pain, and most affected men exhibit no noticeable symptoms. Men are often diagnosed as the result of health screenings, such as a blood test for a substance called prostate specific antigen (PSA) or a medical exam called a digital rectal exam (DRE). As the tumour grows larger, signs and symptoms can include difficulty starting or stopping the flow of urine, a feeling of not being able to empty the bladder completely, blood in the urine or semen, or pain with ejaculation. However, these changes can also occur with many other genitourinary conditions. Having one or more of these symptoms does not necessarily mean that a man has prostate cancer.

The severity and outcome of prostate cancer varies widely. Early-stage prostate cancer can usually be treated successfully, and some older men have prostate tumours that grow so slowly that they may never cause health problems during their lifetime, even without treatment. In other men, however, the cancer is much more aggressive; in these cases, prostate cancer can be life-threatening.

Some cancerous tumours can invade surrounding tissue and spread to other parts of the body. Tumours that begin at one site and then spread to other areas of the body are called metastatic cancers. The signs and symptoms of metastatic cancer depend on where the disease has spread. If prostate cancer spreads, cancerous cells most often appear in the lymph nodes, bones, lungs, liver, or brain.

A small percentage of prostate cancers are hereditary and occur in families. These hereditary cancers are associated with inherited gene variants. Hereditary prostate cancers tend to develop earlier in life than non-inherited (sporadic) cases.

Padrões de herança

The source lists the following possible inheritance patterns: Autosomal dominant; Not inherited; Pattern unknown. More than one pattern can apply in different cases.

Related genes

• FGFR2

• FGFR4

• BRCA1

• BRCA2

• Gene PTEN

• AR

• WRN

• EP300

• GNMT

• NBN

• CDH1

• STAT3

• SRD5A2

• IGF2

• MED12

• WT1

• LRP2

• ITGA6

• PCNT

• TGFBR1

• EZH2

• HOXB13

• HNF1B

• ZFHX3

• KLF6

• EPHB2

• CD82

• MSMB

• MSR1

• MXI1

• PLXNB1

• RNASEL

• MAD1L1

• CHEK2

• EHBP1

• ELAC2

Other names

Cancer of the prostate

Malignant neoplasm of the prostate

Prostate carcinoma

Prostate neoplasm

Prostatic cancer

Prostatic carcinoma

Prostatic neoplasm