In medicine the term „puncture“ describes the extraction of tissues or fluid from a body cavity by inserting a hollow needle. This is frequently applied in tumor diagnostics, as for example:
Bone marrow puncture and biopsy (iliac crest biopsy)
The bone marrow produces red and white blood cells (erythrocytes and leucocytes) as well as platelets (thrombocytes). In bone marrow biopsies a small bone marrow sample is removed through a hollow needle for further examination. In most cases the doctor will be able to diagnose diseases of the blood building system with this procedure. A bone marrow puncture can be performed on an outpatient basis.
Withdrawing fluid from the gap between ribs and lungs under ultrasound guidance.
- Peritoneal puncture (ascites puncture)
Withdrawing abdominal fluid from the abdominal cavity under ultrasound guidance.
Withdrawing cerebrospinal fluid from the spinal cord or brain.