MeSH

Removal and pathologic examination of specimens from the living body.

A specialty concerned with the nature and cause of disease as expressed by changes in cellular or tissue structure and function caused by the disease process.

Used for organ, tissue, or cell structure in disease states.

Year introduced: 1966

The use of needles usually larger than 14-gauge to remove tissue samples large enough to retain cellular architecture for pathology examination.

Year introduced: 2013

Conducting a biopsy procedure with the aid of a MEDICAL IMAGING modality.

Year introduced: 2013

Using fine needles (finer than 22-gauge) to remove tissue or fluid specimens from the living body for examination in the pathology laboratory and for disease diagnosis.

Year introduced: 2004

A diagnostic procedure used to determine whether LYMPHATIC METASTASIS has occurred. The SENTINEL LYMPH NODE is the first lymph node to receive drainage from a neoplasm.

Year introduced: 2001

Removal and examination of tissue obtained through a transdermal needle inserted into the specific region, organ, or tissue being analyzed.

Year introduced: 1973

Obtaining material for pathological examination and analysis, from bodily fluids. Material retrieved includes CELL-FREE NUCLEIC ACIDS; CELL-DERIVED MICROPARTICLES; EXOSOMES; CIRCULATING NEOPLASM CELLS; and other circulating cells and CELLULAR STRUCTURES.

Year introduced: 2018

A method for diagnosis of fetal diseases by sampling the cells of the placental chorionic villi for DNA analysis, presence of bacteria, concentration of metabolites, etc. The advantage over amniocentesis is that the procedure can be carried out in the first trimester.

Year introduced: 1989

A method for removing lesions from gastrointestinal MUCOUS MEMBRANES. The mucosal tissue with the lesion is elevated by injecting a solution into the submucosal layer underneath it. The elevated tissue with the lesion is then cut out.

Year introduced: 2017