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Cancer staging

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obtained by making indirect observations of a tumor which is still in the body. However, clinical staging and pathologic staging often complement each other. Not every tumor is treated surgically, so pathologic staging is not always available. Also, sometimes surgery is preceded by other treatments such as
656:, Stage II indicates affected lymph nodes on only one side of the diaphragm, whereas Stage III indicates affected lymph nodes above and below the diaphragm. The specific criteria for Stages II and III therefore differ according to diagnosis. Stage III can be treated by chemotherapy, radiation, or surgery. 255:
Because they use different criteria, clinical stage and pathologic stage often differ. Pathologic staging is usually considered to be more accurate because it allows direct examination of the tumor in its entirety, contrasted with clinical staging which is limited by the fact that the information is
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Thompson, I.; Thrasher, J. B.; Aus, G.; Burnett, A. L.; Canby-Hagino, E. D.; Cookson, M. S.; d'Amico, A. V.; Dmochowski, R. R.; Eton, D. T.; Forman, J. D.; Goldenberg, S. L.; Hernandez, J.; Higano, C. S.; Kraus, S. R.; Moul, J. W.; Tangen, C. M.; AUA Prostate Cancer Clinical Guideline Update Panel
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Within the TNM system, a cancer may also be designated as recurrent, meaning that it has appeared again after being in remission or after all visible tumor has been eliminated. Recurrence can either be local, meaning that it appears in the same location as the original, or distant, meaning that it
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Carlson, R. W.; Allred, D. C.; Anderson, B. O.; Burstein, H. J.; Carter, W. B.; Edge, S. B.; Erban, J. K.; Farrar, W. B.; Goldstein, L. J.; Gradishar, W. J.; Hayes, D. F.; Hudis, C. A.; Jahanzeb, M.; Kiel, K.; Ljung, B. M.; Marcom, P. K.; Mayer, I. A.; McCormick, B.; Nabell, L. M.; Pierce, L. J.;
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Stage migration is a change in the distribution of stages in a particular cancer population, induced by either a change in the staging system itself or else a change in technology which allows more sensitive detection of tumor spread and therefore more sensitivity in detecting spread of disease
666:, or spread to other organs or throughout the body. Stage IV cancer can be treated by chemotherapy, radiation, or surgery. Despite treatment, a patient's mortality rate can be significantly higher with Stage IV cancer, e.g., the cancer can progress to become 272:
Correct staging is critical because treatment (particularly the need for pre-operative therapy and/or for adjuvant treatment, the extent of surgery) is generally based on this parameter. Thus, incorrect staging would lead to improper treatment.
312:, can be particularly problematic for two specific reasons: visual discretion and random sampling of tissue. "Visual discretion" means being able to identify single cancerous cells intermixed with healthy cells on a slide. Oversight of one 276:
For some common cancers the staging process is well-defined. For example, in the cases of breast cancer and prostate cancer, doctors routinely can identify that the cancer is early and that it has low risk of metastasis. In such cases,
467:: follows a scale from I to IV and can be indicated further by an A or B, depending on whether a patient is non-symptomatic or has symptoms such as fevers. It is known as the "Cotswold System" or "Modified Ann Arbor Staging System". 316:
can mean misstaging and lead to serious, unexpected spread of cancer. "Random sampling" refers to the fact that lymph nodes are cherry-picked from patients and random samples are examined. If cancerous cells present in the
411:. Because of its high sensitivity, RT-PCR screening for GCC greatly reduces underestimation of disease stage. Researchers hope that staging with this level of precision will lead to more appropriate treatment and better 161:
has grown and spread. A number from I to IV is assigned, with I being an isolated cancer and IV being a cancer that has metastasized and spread from its origin. The stage generally takes into account the size of a
204:(Tumor, Node, Metastasis) system, clinical stage and pathologic stage are denoted by a small "c" or "p" before the stage (e.g., cT3N1M0 or pT2N0). This staging system is used for most forms of cancer, except 296:
because research shows that the risk of getting such procedures outweighs the possible benefits. Some of the problems associated with overtesting include patients receiving invasive procedures,
512: 435:), but some cancers do not have a staging system. Although competing staging systems still exist for some types of cancer, the universally-accepted staging system is that of the 46: 755:
Reed, E. C.; Smith, M. L.; Somlo, G.; Theriault, R. L.; Topham, N. S.; Ward, J. H.; Winer, E. P.; Wolff, A. C.; NCCN Breast Cancer Clinical Practice Guidelines Panel (2009).
484: 717: 1046: 652:: cancers are also locally advanced. Whether a cancer is designated as Stage II or Stage III can depend on the specific type of cancer; for example, in 559:: TNM used. Also of importance are the "Clark level" and "Breslow depth" which refer to the microscopic depth of tumor invasion ("Microstaging"). 731: 713: 971: 516: 440: 436: 1021: 996: 861: 378: 828: 345: 1113: 735: 1196: 107: 946: 79: 1588: 1511: 1138: 498: 285: 54: 1088: 86: 360: 924: 1542: 281: 209: 356: 65: 50: 1336: 289: 93: 1371: 1329: 407:) with a high degree of sensitivity and exactitude. Presence of GCC in any other tissue of the body represents 1050: 321:
happen not to be present in the slices of tissue viewed, incorrect staging and improper treatment can result.
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For solid tumors, TNM is by far the most commonly used system, but it has been adapted for some conditions.
408: 75: 1469: 1423: 689: 640:: cancers are localized to one part of the body. Stage I cancer can be surgically removed if small enough. 607:
Staging. This system uses numerals I, II, III, and IV (plus the 0) to describe the progression of cancer.
1521: 1502: 879:"An Operative Staging System and a Megavoltage Radiotherapeutic Technic for Cerebellar Medulloblastomas" 400: 646:: cancers are locally advanced. Stage II cancer can be treated by chemotherapy, radiation, or surgery. 1474: 1319: 1309: 1189: 653: 538: 526: 278: 221: 1361: 1293: 625: 1169: 1454: 502: 415:. Furthermore, researchers hope that this same technique can be applied to other tissue-specific 396: 201: 187: 529:). More recently, colon cancer staging is indicated either by the original A-D stages or by TNM. 1557: 1547: 1459: 1273: 906: 898: 857: 808: 778: 629: 615: 568: 459: 293: 261: 791:(2007). "Guideline for the Management of Clinically Localized Prostate Cancer: 2007 Update". 515:" system has been adopted into the TNM system. For premalignant dysplastic changes, the CIN ( 1446: 1324: 890: 800: 768: 667: 464: 309: 100: 975: 1562: 1537: 1182: 1174: 1025: 1000: 726: 621:, abnormal cells growing in their normal place ("in situ" from Latin for "in its place"). 508: 488: 297: 244: 167: 1071: 446:
Systems of staging may differ between diseases or specific manifestations of a disease.
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medical services, getting unnecessary radiation exposure, and experiencing misdiagnosis.
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scans). Stage migration can lead to curious statistical phenomena (for example, the
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to remove the tumor. This stage may include information about the tumor obtained by
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Cancer staging can be divided into a clinical stage and a pathologic stage. In the
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which shrink the tumor, so the pathologic stage may underestimate the true stage.
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it has spread to (if any), and whether it has appeared in more distant locations (
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Pathologic stage adds additional information gained by examination of the tumor
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New, highly sensitive methods of staging are in development. For example, the
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Clinical stage is based on all of the available information obtained before a
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if you can. Unsourced or poorly sourced material may be challenged and
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3D medical illustration depicting the TNM stages in breast cancer
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are staged following a classification developed by Chang et al.
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Chang, Chu H.; Housepian, Edgar M.; Herbert, Charles (1969).
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Pathologic staging, where a pathologist examines sections of
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Staging systems are specific for each type of cancer (e.g.,
525:: originally consisted of four stages: A, B, C, and D (the 757:"Breast cancer. Clinical practice guidelines in oncology" 1116:. National Comprehensive Cancer Network. Archived from 352: 61: 148:
Determining the extent to which a cancer has developed
925:"Breast Cancer Treatment - National Cancer Institute" 856:. International Agency for Research on Cancer. 2021. 718:"Five Things Physicians and Patients Should Question" 761:
Journal of the National Comprehensive Cancer Network
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is the process of determining the extent to which a
1530: 1483: 1441: 1416: 1380: 1302: 1261: 1228: 1221: 144: 139: 27:Process of determining the extent of cancer spread 624:Stage 0 can also mean no remaining cancer after 1024:. Cancerhelp.org.uk. 2010-07-28. Archived from 999:. Cancerhelp.org.uk. 2010-06-30. Archived from 403:, can be identified using molecular screening ( 603:Overall Stage Grouping is also referred to as 60:Please review the contents of the article and 1190: 8: 1225: 1197: 1183: 1175: 708: 706: 704: 505:, but staging in I–IV may be used as well. 772: 675:appears in a different part of the body. 399:), present only in the luminal aspect of 379:Learn how and when to remove this message 191: 700: 725:Choosing Wisely: an initiative of the 136: 947:"FIGO staging of cervical carcinomas" 732:American Society of Clinical Oncology 714:American Society of Clinical Oncology 251:after it has been surgically removed. 7: 1091:. Chorus.rad.mcw.edu. Archived from 1022:"The stages of cancer of the larynx" 949:. Screening.iarc.fr. Archived from 571:: uses TNM along with a measure of 517:cervical intraepithelial neoplasia 166:, whether it has invaded adjacent 25: 974:. oncologychannel. Archived from 831:. oncologychannel. Archived from 333: 126: 34: 1114:"NCCN Guidelines for Patients" 1072:Imaging in Lung Cancer Staging 854:Central Nervous System Tumours 565:: TNM almost universally used. 501:, staging is usually based on 62:add the appropriate references 1: 1512:Clonally transmissible cancer 1089:"malignant melanoma: staging" 1047:"How is liver cancer staged?" 829:"Hodgkin's Disease - Staging" 284:recommend against the use of 170:, how many regional (nearby) 509:Cervical and ovarian cancers 499:breast cancer classification 487:. Embryonal CNS tumors like 359:the claims made and adding 47:reliable medical references 1605: 1543:Index of oncology articles 805:10.1016/j.juro.2007.03.003 282:professional organizations 210:hematological malignancies 185: 997:"Stages of kidney cancer" 945:Eric Lucas (2006-01-31). 519:) grading system is used. 53:or relies too heavily on 972:"Colon Cancer - Staging" 927:. Cancer.gov. 2010-08-13 579:Non-melanoma skin cancer 1465:Prostate cancer staging 1429:Paraneoplastic syndrome 1147:American Cancer Society 1139:"Bladder Cancer Stages" 774:10.6004/jnccn.2009.0012 1503:Tumor suppressor genes 1470:Gleason grading system 1424:Precancerous condition 793:The Journal of Urology 690:Will Rogers phenomenon 628:in some cancers (e.g. 626:preoperative treatment 600: 592:Overall stage grouping 197: 1522:Carcinogenic bacteria 1262:Malignant progression 662:: cancers have often 599: 409:colorectal metaplasia 401:intestinal epithelium 195: 1589:Anatomical pathology 1475:Dukes classification 539:Cancer of the larynx 527:Dukes staging system 222:physical examination 1294:Sentinel lymph node 1342:Respiratory system 684:(e.g., the use of 601: 397:guanylyl cyclase c 344:possibly contains 198: 188:TNM staging system 182:TNM staging system 1571: 1570: 1558:Cancer and nausea 1437: 1436: 1274:Carcinoma in situ 895:10.1148/93.6.1351 654:Hodgkin's Disease 630:colorectal cancer 569:Testicular cancer 460:Ann Arbor staging 389: 388: 381: 346:original research 279:medical specialty 262:radiation therapy 152: 151: 135: 134: 111: 16:(Redirected from 1596: 1372:Endocrine system 1337:Digestive system 1226: 1199: 1192: 1185: 1176: 1158: 1157: 1155: 1153: 1135: 1129: 1128: 1126: 1125: 1110: 1104: 1103: 1101: 1100: 1085: 1079: 1068: 1062: 1061: 1059: 1058: 1049:. 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738: 727:ABIM Foundation 720: 712: 711: 702: 698: 681: 679:Stage migration 594: 575:markers (TNMS). 563:Prostate cancer 489:medulloblastoma 474: 452: 425: 385: 374: 368: 365: 350: 338: 334: 327: 306: 270: 245:microscopically 190: 184: 131: 127: 122: 116: 113: 70: 59: 55:primary sources 39: 35: 28: 23: 22: 15: 12: 11: 5: 1602: 1600: 1592: 1591: 1586: 1584:Cancer staging 1576: 1575: 1569: 1568: 1566: 1565: 1560: 1555: 1550: 1545: 1540: 1534: 1532: 1528: 1527: 1525: 1524: 1519: 1514: 1509: 1500: 1495: 1489: 1487: 1485:Carcinogenesis 1481: 1480: 1478: 1477: 1472: 1467: 1462: 1457: 1451: 1449: 1439: 1438: 1435: 1434: 1432: 1431: 1426: 1420: 1418: 1414: 1413: 1411: 1410: 1405: 1400: 1395: 1390: 1384: 1382: 1378: 1377: 1375: 1374: 1369: 1367:Nervous system 1364: 1359: 1354: 1349: 1344: 1339: 1334: 1333: 1332: 1330:nasopharyngeal 1327: 1322: 1317: 1306: 1304: 1300: 1299: 1297: 1296: 1291: 1286: 1281: 1276: 1271: 1265: 1263: 1259: 1258: 1256: 1255: 1250: 1245: 1240: 1234: 1232: 1223: 1219: 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Index

Stage-4 cancer
reliable medical references
verification
primary sources
add the appropriate references
removed
"Cancer staging"
news
newspapers
books
scholar
JSTOR
cancer
tumor
organs
lymph nodes
metastasized
TNM staging system
3D medical illustration depicting the TNM stages in breast cancer
TNM
brain tumors
hematological malignancies
surgery
physical examination
blood tests
radiologic
biopsy
endoscopy
microscopically
pathologist

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