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Transthoracic Lung Biopsy
What is it?
A transthoracic lung needle biopsy is a minimally invasive medical procedure used to obtain a small sample of lung tissue for diagnosis of lung conditions. This is typically done when an abnormality, such as a nodule or mass, is detected in the lungs through imaging tests like a CT scan.
What happens during the procedure?
1.
Preparation: The patient is positioned comfortably, often lying on their back or side. Local anaesthesia is administered to numb the skin and tissues over the biopsy site. In some cases, a sedative may be given to help the patient relax, but the patient remains awake for the procedure
2.
Imaging Guidance: To ensure accuracy, imaging techniques such as CT scans or ultrasound are used to locate the exact area of the lung that needs to be biopsied.
3.
Needle Insertion: A thin, hollow needle is carefully inserted through the chest wall into the lung tissue. The patient may be asked to hold their breath briefly to minimise movement. The needle collects a small tissue sample from the targeted area.
4.
Post-Procedure Care: After the biopsy, the patient is monitored for a short period to check for any immediate complications. A chest X-ray may be performed to ensure there are no issues like a collapsed lung (pneumothorax).
Why is it done?
This biopsy is performed to diagnose various lung conditions, including:
- Cancer: To determine if a lung mass is malignant.
- Infections: To identify bacterial, viral, or fungal infections.
- Inflammatory Diseases: Such as sarcoidosis or autoimmune disorders.
- Other Lung Diseases: Including interstitial lung diseases.
Risks and considerations
While generally safe, the procedure carries some risks, such as:
- Pneumothorax: A collapsed lung, which may require treatment.
- Bleeding: Minor bleeding is common; however, significant bleeding is rare.
- Infection: As with any procedure involving a needle, there's a slight risk of infection.
Patients should discuss any concerns with their healthcare provider to understand the benefits and risks specific to their situation.
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