BACK TOTOP Browse A-ZSearchBrowse A-ZABCDEFGHIJKLMNOPQRSTUVWXYZ0-9 E-mail FormEmail ResultsName:Email address:Recipients Name:Recipients address:Message: Print-FriendlyBookmarksbookmarks-menuSynovial biopsyBiopsy - synovial membrane; Rheumatoid arthritis - synovial biopsy; Gout - synovial biopsy; Joint infection - synovial biopsy; Synovitis - synovial biopsyA synovial biopsy is the removal of a piece of tissue lining a joint for examination. The tissue is called the synovial membrane. How the Test is Performed The test can be done in the operating room or in the physician's office. There are multiple techniques used for synovial biopsy including surgery, arthroscopy or ultrasound guided needle biopsy.During this procedure:Depending on the type of procedure, you may receive general anesthesia, regional anesthesia or local anesthesia. With general anesthesia, you'll be pain free and asleep during the procedure. With regional anesthesia, you'll be awake, but the part of the body with the involved joint will be numb. With local anesthesia, only the joint is numbed and you will be awake during the procedure.General anesthesiaGeneral anesthesia is treatment with certain medicines that puts you into a deep sleep so you do not feel pain during surgery. After you receive the...Read Article Now Book Mark Article Regional anesthesiaSpinal and epidural anesthesia are procedures that deliver medicines that numb parts of your body to block pain. They are given through shots in or ...Read Article Now Book Mark Article If you are having an arthroscopic procedure:The surgeon makes a tiny cut in the skin near the joint. An instrument called a trocar is inserted through the cut into the joint. A tiny camera with a light is used to look inside the joint. A tool called a biopsy grasper is then inserted through the trocar. The grasper is used to cut a small piece of tissue. The surgeon removes the grasper along with the tissue. The trocar and any other instruments are removed. The skin cut is closed and a bandage is applied. The sample will be sent to the laboratory for evaluation. If you are having a needle biopsy:The physician (radiologist, orthopedist or rheumatologist) will identify the site using ultrasound. The site of the biopsy will be cleaned and numbed. A needle sized trochar is inserted into the joint. A tool called a biopsy needle will be inserted through the trochar. The physician will use the ultrasound to determine where to obtain the tissue from for biopsy. The physician will cut a small piece of tissue with the biopsy needle. Multiple samples may be taken based on the clinical case. The biopsy needle will be removed from the joint and the tissue will be sent to the laboratory for examination. The trochar will be removed. A small bandage will be applied and stitches are not needed. Your physician will determine which method is best given your clinical case. How to Prepare for the Test Follow your health care provider's instructions on how to prepare. This may include not eating and drinking anything for several hours before the procedure. How the Test will Feel With the local anesthetic, you will feel a prick and a burning sensation. As the trocar is inserted, there will be some discomfort. If the surgery is performed under regional or general anesthesia, you will not feel the procedure. Why the Test is Performed Synovial biopsy helps diagnose gout and bacterial infections, or rule out other infections. It can be used to diagnose autoimmune disorders such as rheumatoid arthritis, or uncommon infections like tuberculosis or fungal infections.GoutGout is a type of arthritis. It occurs when uric acid builds up in the blood and causes inflammation in the joints. Acute gout is a painful conditio...ImageRead Article Now Book Mark Article Normal Results The synovial membrane structure is normal. What Abnormal Results Mean Synovial biopsy may identify the following conditions:Long-term (chronic) synovitis (inflammation of the synovial membrane) Coccidioidomycosis (a fungal infection) CoccidioidomycosisValley fever is an infection that occurs when the spores of the fungus Coccidioides immitis enter your body through the lungs.ImageRead Article Now Book Mark Article Fungal arthritis Fungal arthritisFungal arthritis is swelling and irritation (inflammation) of a joint by a fungal infection. It is also called mycotic arthritis.ImageRead Article Now Book Mark Article Gout Pseudogout Hemochromatosis (abnormal buildup of iron deposits) HemochromatosisHemochromatosis is a condition in which there is too much iron in the body. It is also called iron overload.ImageRead Article Now Book Mark Article Systemic lupus erythematosus (autoimmune disease that affects the skin, joints, and other organs) Systemic lupus erythematosusSystemic lupus erythematosus (SLE) is an autoimmune disease. In this disease, the immune system of the body mistakenly attacks healthy tissue. It c...ImageRead Article Now Book Mark Article Sarcoidosis Tuberculosis TuberculosisPulmonary tuberculosis (TB) is a contagious bacterial infection that involves the lungs. It may spread to other organs.ImageRead Article Now Book Mark Article Synovial cancer (very rare type of soft tissue cancer) Rheumatoid arthritisRheumatoid arthritisRheumatoid arthritis (RA) is a disease that leads to inflammation of the joints and surrounding tissues. It is a long-term disease. It can also aff...ImageRead Article Now Book Mark Article Risks There is a very slight chance of infection and bleeding. Considerations Follow instructions for keeping the wound clean and dry until your provider says it is OK to get it wet.Open ReferencesReferencesEl-Gabalawy HS, Tanner S. Synovial fluid analyses, synovial biopsy, and synovial pathology. In: Firestein GS, Budd RC, Gabriel SE, Koretzky GA, McInnes IB, O'Dell JR, eds. Firestein and Kelley's Textbook of Rheumatology. 11th ed. Philadelphia, PA: Elsevier; 2021:chap 56.Johnsson H, Najm A. Synovial biopsies in clinical practice and research: current developments and perspectives. Clinical Rheumatology. 2021;40(7):2593-2600. PMID: 33274415 pubmed.ncbi.nlm.nih.gov/33274415/.West SG. Synovial biopsies. In: West SG, Kolfenbach J, eds. Rheumatology Secrets. 4th ed. Philadelphia, PA: Elsevier; 2020:chap 9.AllVideoImagesTogSynovial biopsy - illustration A synovial biopsy takes a sample of synovial tissue which is tissue that lines the joint. The test is performed to help diagnose gout, bacterial infections, and other infections.Synovial biopsyillustrationSynovial biopsy - illustration A synovial biopsy takes a sample of synovial tissue which is tissue that lines the joint. The test is performed to help diagnose gout, bacterial infections, and other infections.Synovial biopsyillustration Tests for Synovial biopsy Synovial biopsySynovial fluid analysisRelated Information Biopsy(Medical Test)Gout(Condition)Valley fever(Condition)Fungal arthritis(Condition)Hemochromatosis(Condition)Pulmonary tuberculosis(Condition)Cancer(Condition)Rheumatoid arthritis(Condition)Gout - InDepth(In-Depth)Rheumatoid arthritis - InDepth(In-Depth) Review Date: 7/21/2022 Reviewed By: Diane M. Horowitz, MD, Rheumatology and Internal Medicine, Northwell Health, Great Neck, NY. Review provided by VeriMed Healthcare Network. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team. 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Synovial biopsyBiopsy - synovial membrane; Rheumatoid arthritis - synovial biopsy; Gout - synovial biopsy; Joint infection - synovial biopsy; Synovitis - synovial biopsyA synovial biopsy is the removal of a piece of tissue lining a joint for examination. The tissue is called the synovial membrane. How the Test is Performed The test can be done in the operating room or in the physician's office. There are multiple techniques used for synovial biopsy including surgery, arthroscopy or ultrasound guided needle biopsy.During this procedure:Depending on the type of procedure, you may receive general anesthesia, regional anesthesia or local anesthesia. With general anesthesia, you'll be pain free and asleep during the procedure. With regional anesthesia, you'll be awake, but the part of the body with the involved joint will be numb. With local anesthesia, only the joint is numbed and you will be awake during the procedure.General anesthesiaGeneral anesthesia is treatment with certain medicines that puts you into a deep sleep so you do not feel pain during surgery. After you receive the...Read Article Now Book Mark Article Regional anesthesiaSpinal and epidural anesthesia are procedures that deliver medicines that numb parts of your body to block pain. They are given through shots in or ...Read Article Now Book Mark Article If you are having an arthroscopic procedure:The surgeon makes a tiny cut in the skin near the joint. An instrument called a trocar is inserted through the cut into the joint. A tiny camera with a light is used to look inside the joint. A tool called a biopsy grasper is then inserted through the trocar. The grasper is used to cut a small piece of tissue. The surgeon removes the grasper along with the tissue. The trocar and any other instruments are removed. The skin cut is closed and a bandage is applied. The sample will be sent to the laboratory for evaluation. If you are having a needle biopsy:The physician (radiologist, orthopedist or rheumatologist) will identify the site using ultrasound. The site of the biopsy will be cleaned and numbed. A needle sized trochar is inserted into the joint. A tool called a biopsy needle will be inserted through the trochar. The physician will use the ultrasound to determine where to obtain the tissue from for biopsy. The physician will cut a small piece of tissue with the biopsy needle. Multiple samples may be taken based on the clinical case. The biopsy needle will be removed from the joint and the tissue will be sent to the laboratory for examination. The trochar will be removed. A small bandage will be applied and stitches are not needed. Your physician will determine which method is best given your clinical case. How to Prepare for the Test Follow your health care provider's instructions on how to prepare. This may include not eating and drinking anything for several hours before the procedure. How the Test will Feel With the local anesthetic, you will feel a prick and a burning sensation. As the trocar is inserted, there will be some discomfort. If the surgery is performed under regional or general anesthesia, you will not feel the procedure. Why the Test is Performed Synovial biopsy helps diagnose gout and bacterial infections, or rule out other infections. It can be used to diagnose autoimmune disorders such as rheumatoid arthritis, or uncommon infections like tuberculosis or fungal infections.GoutGout is a type of arthritis. It occurs when uric acid builds up in the blood and causes inflammation in the joints. Acute gout is a painful conditio...ImageRead Article Now Book Mark Article Normal Results The synovial membrane structure is normal. What Abnormal Results Mean Synovial biopsy may identify the following conditions:Long-term (chronic) synovitis (inflammation of the synovial membrane) Coccidioidomycosis (a fungal infection) CoccidioidomycosisValley fever is an infection that occurs when the spores of the fungus Coccidioides immitis enter your body through the lungs.ImageRead Article Now Book Mark Article Fungal arthritis Fungal arthritisFungal arthritis is swelling and irritation (inflammation) of a joint by a fungal infection. It is also called mycotic arthritis.ImageRead Article Now Book Mark Article Gout Pseudogout Hemochromatosis (abnormal buildup of iron deposits) HemochromatosisHemochromatosis is a condition in which there is too much iron in the body. It is also called iron overload.ImageRead Article Now Book Mark Article Systemic lupus erythematosus (autoimmune disease that affects the skin, joints, and other organs) Systemic lupus erythematosusSystemic lupus erythematosus (SLE) is an autoimmune disease. In this disease, the immune system of the body mistakenly attacks healthy tissue. It c...ImageRead Article Now Book Mark Article Sarcoidosis Tuberculosis TuberculosisPulmonary tuberculosis (TB) is a contagious bacterial infection that involves the lungs. It may spread to other organs.ImageRead Article Now Book Mark Article Synovial cancer (very rare type of soft tissue cancer) Rheumatoid arthritisRheumatoid arthritisRheumatoid arthritis (RA) is a disease that leads to inflammation of the joints and surrounding tissues. It is a long-term disease. It can also aff...ImageRead Article Now Book Mark Article Risks There is a very slight chance of infection and bleeding. Considerations Follow instructions for keeping the wound clean and dry until your provider says it is OK to get it wet.Open ReferencesReferencesEl-Gabalawy HS, Tanner S. Synovial fluid analyses, synovial biopsy, and synovial pathology. In: Firestein GS, Budd RC, Gabriel SE, Koretzky GA, McInnes IB, O'Dell JR, eds. Firestein and Kelley's Textbook of Rheumatology. 11th ed. Philadelphia, PA: Elsevier; 2021:chap 56.Johnsson H, Najm A. Synovial biopsies in clinical practice and research: current developments and perspectives. Clinical Rheumatology. 2021;40(7):2593-2600. PMID: 33274415 pubmed.ncbi.nlm.nih.gov/33274415/.West SG. Synovial biopsies. In: West SG, Kolfenbach J, eds. Rheumatology Secrets. 4th ed. Philadelphia, PA: Elsevier; 2020:chap 9.