Skip to content

Advocatetanmoy Law Library

Encyclopedia & Legal Research

Afghanistan Albania Algeria Andorra Angola Antigua & Barbuda Argentina Armenia Aruba Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bosnia & Herzegovina Botswana Brazil British V. Islands Brunei Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Carrib. Netherlands Cayman Island Chile China Colombia Congo DRC Congo Republic Costa Rica Cote d’Ivoire Croatia Cuba Curaçao Cyprus Czechia Denmark Djibouti Dominica Dominican Republic Ecuador Egypt El alvador Estonia Ethiopia Fiji Finland France French Polyn Gabon Georgia Germany Ghana Gibraltar Greece Grenada Guadeloupe Guam Guatemala Guernsey Guinea-Bissau Guyana Haiti Honduras Hong Kong Hungary Iceland India Indonesia Iran ​Iraq Ireland Isle of Man Israel Italy Jamaica Japan Jersey Jordan Kazakhstan Kenya Kosovo Kuwait Kyrgyzstan Laos Latvia Lebanon Liberia Libya Liechtenstein Lithuania Luxembourg Macao Madagascar Malawi Malaysia Maldives Mali Malta Martinique Mauritius Mexico Moldova Monaco Mongolia Montenegro Morocco Mozambique Myanmar/Burma Namibia Nepal Netherlands New Caledonia New Zealand Nicaragua Niger Nigeria North Macedonia Northern Mariana Islands Norway Oman Pakistan Palestine Panama Papua New Guinea Paraguay Peru Philippines Poland Portugal Puerto Rico Qatar Réunion Romania Russia Rwanda Saint Lucia St Vincent & Grenadines Samoa Saudi Arabia Senegal Serbia Seychelles Sierra Leone Singapore Slovakia Slovenia Somalia South Africa South Korea Spain Sri Lanka St. Kitts & Nevis Sudan Suriname Swaziland Sweden Switzerland Syria Taiwan Tajikistan Tanzania Thailand Togo Trinidad & Tobago Tunisia Turkey Turkmenistan UAE U.S. Virgin Islands Uganda Ukraine UK United States Uruguay Uzbekistan Vatican City Venezuela Vietnam Yemen Zambia

  • Home
    • SITE UPDATES
  • Constitutions
  • Dictionary
  • Law Exam
  • Pleading
  • Index
  • Notifications
  • Indian Law
  • Articles
  • Home
  • 2021
  • February
  • 6
  • Tumor grade refers to the degree of abnormality of cancer cells
  • Medical

Tumor grade refers to the degree of abnormality of cancer cells

If a tumor is suspected to be malignant, a doctor removes a sample of tissue or the entire tumor in a procedure called a biopsy. From the biopsy, a pathologist (a doctor who identifies diseases by studying cells under a microscope) can determine whether the tumor is benign or malignant. The pathologist can also identify other characteristics of the tumor cells, including tumor grade and the degree of cell differentiation.
3 min read

© Advocatetanmoy Law Library

  • Click to share on Facebook (Opens in new window)
  • Click to share on Twitter (Opens in new window)
  • Click to share on WhatsApp (Opens in new window)
  • More
  • Click to share on Tumblr (Opens in new window)
  • Click to share on Skype (Opens in new window)
  • Click to share on Reddit (Opens in new window)
  • Click to share on Pocket (Opens in new window)
  • Click to share on Pinterest (Opens in new window)
  • Click to share on Telegram (Opens in new window)
  • Click to share on LinkedIn (Opens in new window)
image_printPrint

Tumor Grade

Tumor grade is one of many factors that doctors consider when they develop an individual treatment plan for a cancer patient. Tumor grade refers to the degree of abnormality of cancer cells compared with normal cells.

The body is made up of many types of cells. Normally, cells grow and divide to produce new cells in a controlled and orderly manner. This controlled cell division is the process that heals wounds and replaces aging tissues. Sometimes, however, new cells continue to be produced when they are not needed. As a result, a mass of extra tissue called a tumor may develop. A tumor can be benign (not cancerous) or malignant (cancerous). Cells in malignant tumors are abnormal and grow without control or order. These cancerous cells can invade and destroy the tissue around them and spread.

If a tumor is suspected to be malignant, a doctor removes a sample of tissue or the entire tumor in a procedure called a biopsy. From the biopsy, a pathologist (a doctor who identifies diseases by studying cells under a microscope) can determine whether the tumor is benign or malignant. The pathologist can also identify other characteristics of the tumor cells, including tumor grade and the degree of cell differentiation.

The term differentiated describes the extent to which cancer cells are similar in appearance and function to healthy cells of the same tissue type. The degree of differentiation often relates to the clinical behavior of the particular tumor. Grade is a classification system used by pathologists to describe the degree of differentiation of tumor cells. Based on the microscopic appearance of cancer cells, pathologists commonly describe tumor grade by four degrees of severity: Grades 1, 2, 3, and 4. The cells of Grade 1 tumors are often well-differentiated or low-grade tumors, and are generally considered the least aggressive in behavior. Conversely, the cells of Grade 3 or Grade 4 tumors are usually poorly differentiated or undifferentiated high-grade tumors, and are generally the most aggressive in behavior.

The American Joint Commission on Cancer has recommended the following guidelines for grading tumors:

Grade

GX Grade cannot be assessed (Undetermined grade)
G1 Well-differentiated (Low grade)
G2 Moderately well-differentiated (Intermediate grade)
G3 Poorly differentiated (High grade)
G4 Undifferentiated (High grade)

Although grade is used by pathologists to describe most types of cancer, its importance in planning treatment and estimating the future course and outcome of disease (prognosis) is greater for certain types of cancers, such as soft tissue sarcoma, primary brain tumors, lymphomas, and breast and prostate cancer.

Some cancers also have special grading systems. For example, pathologists use the Gleason system to describe the degree of differentiation of prostate cancer cells. The Gleason system uses scores ranging from Grade 2 to Grade 10. Lower Gleason scores describe well-differentiated, less aggressive tumors. Higher scores describe poorly-differentiated, more aggressive tumors.

It is important for physicians and patients alike to know as much as possible about a cancer s grade and stage because both the extent to which the disease has progressed (stage), and its microscopic features (grade) are important factors in planning treatment and estimating a patient s prognosis. Patients should discuss questions about tumor grade and how it relates to their diagnosis and treatment with their doctor.


image_printPrint

Related

Tags: Cancer

Continue Reading

Previous: Priorities for Care of the Dying Person
Next: Medical Dictionary of Cancer

Latest

  • Interpretation NO.748  [ Same-Sex Marriage Case ]-Judicial Yunan-24/05/2017
  • Fake letters of St Paul to Seneca and fake letters of Seneca to St Paul (1863)
  • পতিতার আত্মচরিত – কুমারী শ্রীমতী মানদা দেবী প্রণীত (Autobiography of a prostitute by Manada Devi-1929)
  • U.S strategy towards sub-saharan Africa-08/08/2022
  • Epistle of Epicurus to Herodotus (260BCE)

CONSTITUTION IPC CRPC CPC EVIDENCE DV POCSO IT IP TP JUVENILE CONTRACT SPECIFIC RELIEF CONSUMER ARBITRATION COMPANY LIMITATION FAMILY LAWS POLLUTION CONTROL BANKING INSURANCE

DOCUMENTS GLOSSARIES JUDGMENTS

  • E-Books 2022  More Documents

Search Google

  • BIBLIOGRAPHY
  • HISTORY
  • PHILOSOPHY
  • RELIGION
  • ENVIRONMENT
  • MEDICAL
  • Contact Us
  • About
  • Disclaimers
  • RSS
  • Privacy Policy
Encyclopedia & Legal Research-Database Support.... Copyright © by Advocatetanmoy.