The removal and examination, usually microscopic, of tissue for the purpose of establishing a histopathological diagnosis.
Removal and pathologic examination of specimens in the form of small pieces of tissue from the living body.
The removal of a small piece of living tissue for further diagnostic testing, which is commonly done to look for cancer.
The excision of tissue from the living body, followed by microscopic examination, for the purpose of exact diagnosis.
The process of taking a small piece of living tissue for examination and diagnosis.
The removal of a very small amount of tissue from a selected site.
The taking of tissue or cells from the body to examine in a laboratory, often for diagnostic purposes, such as assessing whether a person has cancer or muscular dystrophy. Most biopsies involve the taking of a small piece of skin or muscle under a local anesthesia. In cases of an accessible tumor or internal organ, a hollow aspiration needle is inserted into the body to suck up cells, also under local anesthetic, sometimes with the aid of ultrasound or other scan devices. If a tumor or internal organ is not readily accessible, a biopsy may sometimes be obtained by pushing into the body an endoscope (long viewing tube) with forceps attached, under a general anesthetic. Biopsy samples may also be obtained as part of a regular operation under general anesthesia; sometimes a whole tumor is removed and sent for analysis.
Removal of a small amount of tissue and/ or fluid from a living body and its examination by microscopic and/or other analytical methods to establish or confirm the presence of a disease, to follow its course, and/or to estimate its outcome. The specimen is usually obtained by suction through a needle, but other methods and instruments, including surgery, are also used.
A surgical procedure to obtain a tissue sample of a mass, tumor, or skin lesion for the purpose of cellular study.
A diagnostic test in which a specimen of tissue is removed for microscopic examination or testing. Methods of tissue removal vary from biopsy to biopsy. For example, in a needle biopsy, a needle is inserted through the skin to remove tissue that may be diseased; in a punch biopsy, a small cylinder of skin is removed. During a bone marrow biopsy, a needle is placed in a pelvic bone to remove and analyze the bone marrow. Biopsy is used to diagnose cancer or certain infections.
The removal of a small piece of living tissue from an organ or part of the body for microscopic examination. Biopsy is an important means of diagnosing cancer from examination of a fragment of tumor. It is often carried out with a special hollow needle, inserted into the liver, kidney, or other organ, with relatively little discomfort to the patient.
The surgical removal of a sample of body tissue for clinical analysis, typically to determine if the tissue is malignant or benign.
Biopsy means the removal and examination of tissue from the living body for diagnostic purposes. For example, a piece of a tumour may be cut out and examined under a microscope or by special chemical stains to determine whether it is cancerous.
A tissue sample removed from the body for microscopic examination, usually to establish a diagnosis. The tissue can be obtained surgically or by aspiration. The procedure can be guided by computed tomography, ultrasonography, magnetic resonance imaging, or radiography, or it can be performed without imaging (i.e., “blindly”).
The removal of a small piece of tissue to view under a microscope.
Cancer tissue taken using small needles or instruments and analyzed for the cancer cells. Muscle tissue sample to determine fiber makeup.
A biopsy is a diagnostic procedure that entails the extraction of small tissue or cell samples from the body for examination under a microscope. It is a highly reliable method for accurately diagnosing various illnesses, including cancer. Microscopic analysis of the obtained tissue or cells typically provides an accurate and definitive diagnosis, aiding in effective treatment and management of the condition.
There are several different types of biopsies utilized in medical practice. An excisional biopsy involves the complete removal of the abnormal area for detailed examination. Incisional biopsy entails the removal of a small sample of skin or muscle for analysis. In a needle biopsy, a needle is inserted through the skin and into the organ or tumor of interest to collect tissue samples. Aspiration biopsy employs a needle and syringe to extract cells from a lump. Guided biopsy employs techniques such as ultrasound or CT scanning to precisely locate the targeted tissue area and monitor the needle’s progress. Endoscopic biopsy involves inserting an endoscope, a viewing tube, into the organ to be examined, and utilizing an attachment to obtain samples from the lining of accessible hollow structures such as the lungs, stomach, or bladder. Open biopsy, on the other hand, requires a surgical incision to expose a diseased organ or tumor and remove a sample. Prompt analysis, sometimes using frozen section techniques where the tissue is rapidly frozen and thinly sliced, allows the surgeon to make timely decisions regarding the removal of the affected area.
Biopsy samples are subjected to analysis through staining techniques, wherein dyes are employed to highlight structures or identify specific components such as antibodies or enzymes. Tissue can be tested using specific antibodies to investigate infections and inflammations. In certain cases, a tissue culture may be necessary, involving the cultivation of tissue cells in a suitable growing medium for further examination and study.
The extraction of a section of living tissue from the body, followed by its analysis through various means, such as microscopy, to assess its composition and the presence or absence of disease.