#puncture

• Abdominocentesis — An invasive medical procedure consisting of the surgical puncturing of the abdominal wall using a trocar or needle, aimed at evacuating or analyzing fluids pathologically accumulated in the peritoneal cavity (ascites). In historical neuropsychiatric practice, the analysis of this fluid was used to differentiate true ascites from an imaginary pregnancy (pseudocyesis) or somatoform disorders with pronounced abdominal distension found in alienated patients.
• Adenogram — The written result, graphical representation, or quantitative and qualitative microscopic interpretation of the cells obtained by fine-needle aspiration of a lymph node or a gland. This structural laboratory investigation (also known as a lymphadenogram) establishes the percentage ratio between different cell types (lymphocytes, neutrophils, histiocytes) to differentiate an inflammatory reaction from a malignant proliferation.
• Arteriocentesis — An invasive medical procedure consisting of the surgical puncturing of an arterial wall using a fine needle or a trocar, performed for diagnostic or therapeutic purposes. This structural clinical act is used for collecting arterial blood to analyze blood gases, directly and continuously monitoring arterial pressure, or evacuating pathological intra-arterial blood collections.
• Arthrocentesis — An invasive medical procedure consisting of puncturing a joint cavity using a sterile needle, performed for diagnostic purposes (to extract and analyze synovial fluid) or therapeutic purposes (to evacuate a fluid effusion or inject medications). It is a fundamental technique in rheumatology and orthopedics for the rapid evaluation of septic or microcrystalline arthritis.