Getting the right diagnosis in lung disease often depends on one thing: getting a good enough piece of tissue. Small samples can be inconclusive, leading to repeat procedures or even surgery. Bronchoscopic lung cryobiopsy uses extreme cold to take larger, higher-quality samples through a bronchoscope, without any surgical cut. In this video, Dr. Dipak Viradia, Chest Physician & Interventional Pulmonologist, explains how it works.

What Is Cryobiopsy?

During bronchoscopy, a thin cryoprobe is passed through the airways to the area to be sampled. The probe tip is cooled to a very low temperature, which freezes and sticks to the surrounding tissue. The probe is then withdrawn together with the frozen tissue sample. Because the tissue is frozen rather than crushed, the samples are larger and better preserved than those from standard forceps biopsy.

When Is Cryobiopsy Used?

1. Interstitial lung disease (lung fibrosis).
This is the main use. Diagnosing the exact type of fibrosis often needs a substantial tissue sample. Transbronchial lung cryobiopsy can provide this and, in many patients, avoids the need for surgical lung biopsy.

2. Lung cancer and other tumours.

• For tumours inside the airways, cryobiopsy gives large samples for accurate diagnosis.
• For nodules in the outer parts of the lung, it can be combined with radial-probe EBUS to locate the lesion.
• Larger samples are especially valuable for molecular and genetic testing of lung cancer (such as EGFR, ALK and PD-L1), which decides whether a patient can receive targeted therapy or immunotherapy.

3. Other conditions: certain lung infections and unexplained lung shadows where standard biopsy hasn’t given an answer.

How the Procedure Is Done

• It is performed under sedation or general anaesthesia in a properly equipped procedure room.
• Fluoroscopy (live X-ray) or radial EBUS is often used to guide the probe to the right spot.
• A balloon may be placed in the airway as a safety measure to control bleeding.
• The procedure usually takes about an hour, and many patients go home the same day or after an overnight stay.

Is It Safe?

Cryobiopsy is safe when performed by an experienced team, but like any lung biopsy it carries some risks:

• Bleeding, usually mild and controlled during the procedure
• Pneumothorax (collapsed lung), which is uncommon and sometimes needs a small chest tube
• Cough or a little blood in the sputum for a day or two

Your doctor will assess whether cryobiopsy is suitable for you, based on your scans, lung function and overall health.

Why It Matters

A clear diagnosis from a single, good-quality sample means fewer repeat procedures, faster answers, and the right treatment sooner, whether that’s antifibrotic therapy for fibrosis or targeted therapy for lung cancer.

Dr. Dipak Viradia
Chest Physician & Intensivist | Interventional Pulmonologist & ECMO Specialist
Rudrax Chest Clinic, 301, Solaris Royce, Opp. Old RTO, Athwagate, Ring Road, Surat – 395001
Appointment: +91 75676 19985
Website: www.drdipakviradia.com