Medical disclaimer: this page is patient education. It does not replace a consultation with your treating doctor. Whether you actually need a biopsy, and what your specific result will mean, depend on your scans, your symptoms, and your history.
Mediastinal Lymphadenopathy in Hyderabad, How an Interventional Pulmonologist Reaches a Diagnosis
Written by Dr. Kunal Waghray, MD DM DNB MNAMS EDRM, Interventional Pulmonologist, Respire Airway Clinics, Hyderabad. Last reviewed 13 May 2026.
Most patients who come to my Basheer Bagh consulting room for this problem walk in holding the same piece of paper. A CT report. Somewhere on it is a phrase they cannot fully read, usually "mediastinal lymphadenopathy" or "enlarged subcarinal node." The referring doctor has used the word "biopsy." Everything between that sentence and a real diagnosis is what this page is for.
I am Dr. Kunal Waghray. I run the interventional pulmonology service at Respire Airway Clinics, with rooms in Basheer Bagh and Jubilee Hills, and I trained at the Amrita Institute of Medical Sciences, Kochi. Enlarged mediastinal lymph nodes are one of the commonest reasons a patient is referred to me.
The short answer to the question you are really asking: does this mean cancer? Not necessarily. In India, the five real causes of enlarged mediastinal lymph nodes are tuberculosis, sarcoidosis, lymphoma, lung cancer, and reactive nodes from an old or current infection. A CT scan, however good, cannot tell them apart. A tissue sample can.
What "Mediastinal Lymphadenopathy" Means on Your CT Report
Mediastinal lymphadenopathy is two words doing two simple jobs.
The mediastinum is the central strip of tissue inside your chest, between the two lungs. It holds the heart, the food pipe, the main airways, and the large blood vessels. It also holds dozens of lymph nodes, arranged in named stations around the airway.
Lymphadenopathy means a lymph node that is bigger than it should be. The size threshold most radiologists use is roughly 10 millimetres in the short axis. Above that, the report will flag it.
Put together, "mediastinal lymphadenopathy" means the radiologist has seen one or more lymph nodes in the centre of your chest that look larger than expected. It is an observation, not a diagnosis.
Does This Mean Cancer? An Honest Answer
Not necessarily, and in India the odds genuinely sit on the other side of that question. When I look at a CT showing enlarged mediastinal nodes, I am holding five possibilities in my head at once.
Tuberculosis
The most common single cause we see in India outside the lung cancer setting. TB can produce enlarged mediastinal nodes with very few other symptoms, sometimes years after a primary infection the patient does not remember.
Sarcoidosis
An inflammatory condition that produces granulomas in lymph nodes and lungs. Common in India, often confused with TB on imaging.
Lymphoma
A cancer of the lymphatic system itself. Hodgkin and non-Hodgkin lymphoma both can present with enlarged mediastinal nodes as the only finding.
Lung cancer
Either as the primary diagnosis, where the cancer is in the lung and has spread to the nodes, or rarely as a presentation in nodes alone.
Reactive nodes
Nodes enlarged from a viral or bacterial infection, often weeks earlier, that have not yet returned to their baseline size.
Why the Indian Differential Is Different
Most of the patient-facing content on this topic comes from US, UK, or European centres. Those guides list lung cancer and lymphoma at the top. In India, the order is genuinely different.
Indian centre data over the last decade has consistently shown that a large share of EBUS samples from mediastinal nodes return granulomatous disease, roughly split between tuberculosis and sarcoidosis, with malignancy making up the rest. TB is always in the leading group. This is not a hedge. It is the reason an interventional pulmonologist in Hyderabad approaches a referral like yours differently from an oncologist in London.
This matters for two reasons. First, it changes what we test for. Every EBUS aspirate I send goes to the cytopathologist for cancer cells, to the microbiologist for TB testing, and where the picture suggests it, to flow cytometry for lymphoma. We do not run a single test and hope. We run the full panel from one needle pass.
Second, it changes the message you carry out of the consulting room. Telling a patient that the most likely cause of their enlarged nodes is a treatable infection, not metastatic cancer, is a very different conversation. If you want to read more about the procedure itself, see what EBUS is.
Why Tissue Diagnosis, Not Watch and Wait
A CT scan can tell me a node is enlarged. A PET scan can add some information about how metabolically active it is. Both are imaging. Neither can name the cell type sitting inside the node, and the cell type is the diagnosis.
Three reasons make "watch and wait" unsafe for most patients in this position. TB looks like sarcoidosis on imaging, and sarcoidosis sometimes looks like lymphoma. The pattern overlap is real. Lymphoma and lung cancer both do better with early treatment. And TB itself needs early treatment to prevent further spread and to protect the people around you.
The procedure to get the tissue is short, sedated, same-day, and minimally invasive. The cost of going through it is much lower than the cost of being wrong about what the node is.
Some patients ask whether they should have a mediastinoscopy instead. For most cases of undiagnosed mediastinal lymphadenopathy in India, EBUS-TBNA is the modern first-line test. The reasoning is laid out on our EBUS vs mediastinoscopy page.
How EBUS-TBNA Reaches the Lymph Node
EBUS-TBNA stands for endobronchial ultrasound-guided transbronchial needle aspiration. It is a bronchoscopy with an ultrasound camera built into the tip of the scope, plus a fine needle that can be passed through the airway wall under live ultrasound guidance.
You arrive fasting. An anaesthetist sedates you, either with propofol or under a short general anaesthetic. The scope passes through your mouth, down past the vocal cords, into the windpipe and the main bronchi. The camera shows the inside of the airway. The ultrasound shows what is sitting outside it.
I work through the lymph node stations in a standard order. When I find the node we are after, I lock the position on the ultrasound screen, advance a 21 or 22 gauge needle through the airway wall, and sample the node directly. A pass takes seconds. Usually three to five passes per node.
No incisions. No stitches. The whole procedure runs 30 to 60 minutes. You wake up in recovery, stay a couple of hours, and go home the same evening with a mildly sore throat. For the full procedure-day walkthrough, see our page on EBUS in Hyderabad.
What We Test the Aspirate For
Cytology and histology
The cytopathologist looks at the cells under the microscope, checking for cancer cells, granulomas (pointing to TB or sarcoidosis), and the architectural pattern of lymphoma.
GeneXpert MTB/RIF
The rapid TB PCR. Tests the aspirate directly for the DNA of Mycobacterium tuberculosis and checks for rifampicin resistance. Result usually back in 24 to 48 hours.
AFB stain and TB culture
The acid-fast bacillus stain looks for TB organisms on the slide. The TB culture is more definitive but grows for six to eight weeks. If GeneXpert is positive, treatment usually starts without waiting for the culture.
Flow cytometry
When lymphoma is in the picture, flow cytometry identifies specific surface markers on the cells and helps classify the type of lymphoma if one is present.
When EBUS Is Not the Right Test
EBUS is the right test for most patients with mediastinal lymphadenopathy. It is not the right test for everyone.
EBUS reaches lymph nodes that sit next to the airway. An anterior mediastinal mass, sitting close to the breastbone, is usually out of EBUS reach. A completely necrotic node, with very few living cells left in it, may not yield a useful sample. Suspected lymphoma sometimes needs a larger sample than a fine needle can give.
The honest position: before scheduling an EBUS, I look at your CT carefully and decide whether the nodes I need to reach are reachable. If they are not, I will say so and route you to a CT-guided biopsy in radiology or to a thoracic surgeon for mediastinoscopy. The job is the diagnosis, not the procedure. For background on the subspecialty and how we work with the rest of the chest team, see our interventional pulmonologist in Hyderabad page.
What Your Appointment at Respire Looks Like
Visit 1: the consultation
Bring the CT scans on a CD or pen drive (DICOM files, not just a printed report). I look at the films with you, listen to your story, examine you, and decide whether EBUS is the right next step. If EBUS is going ahead, we schedule it and give you written pre-procedure instructions.
Visit 2: the procedure day
You arrive fasting. The whole stay is roughly four to five hours, including check-in, sedation, the 30 to 60 minute procedure, and recovery. You go home the same evening with a driver. Office work the next day is fine in most cases.
Visit 3: the results conversation
I do not give EBUS results over the phone or by email. We sit down together, look at the report, and decide what comes next. If the diagnosis is TB, treatment usually starts that week. If the diagnosis is malignancy, we move quickly into the multidisciplinary team discussion.
The whole sequence, from first consultation to a tissue diagnosis, is usually under two weeks.
Frequently Asked Questions
What is mediastinal lymphadenopathy?
Mediastinal lymphadenopathy means one or more lymph nodes in the centre of the chest, between the lungs, are larger than normal on imaging. It is a finding, not a diagnosis. The cause has to be worked out with further tests, usually a biopsy.
Does mediastinal lymphadenopathy always mean cancer?
No. In India, the most common cause outside the lung cancer setting is tuberculosis, followed by sarcoidosis, lymphoma, lung cancer, and reactive nodes. Imaging cannot tell these apart with confidence, which is why a tissue sample is recommended.
Can tuberculosis cause mediastinal lymphadenopathy?
Yes, very commonly in India. TB is one of the leading causes of enlarged mediastinal lymph nodes in adults in this country. The lymph node sample from an EBUS is tested with GeneXpert MTB/RIF, AFB stain, and TB culture to confirm or exclude the diagnosis.
How is mediastinal lymphadenopathy diagnosed in India?
The modern first-line diagnostic test is EBUS-TBNA, performed by an interventional pulmonologist. A bronchoscope with an ultrasound at the tip is used to sample the lymph nodes through the airway wall. The aspirate is tested for cancer cells, granulomas, TB DNA, and where indicated, lymphoma markers.
Is the EBUS biopsy painful?
No. EBUS is performed under deep sedation or short general anaesthesia. Patients do not feel the scope or the needle. A sore throat for about 24 hours afterwards is the only common after-effect.
How long does the EBUS procedure take?
The procedure itself runs 30 to 60 minutes. The total time in the clinic, including pre-procedure preparation and recovery, is usually four to five hours. You go home the same evening.
When will I get my biopsy results?
GeneXpert MTB/RIF and initial cytology results are usually back within 48 to 72 hours. Final histology takes a few more days. TB culture, if sent, grows for six to eight weeks. Treatment decisions are usually made before the culture comes back if the other results are clear.
Do I need a biopsy if I feel fine?
In most cases, yes. Many patients with enlarged mediastinal lymph nodes have no symptoms at all. Imaging alone cannot tell whether the nodes are due to TB, sarcoidosis, lymphoma, lung cancer, or a reactive cause. Knowing the diagnosis matters even when you feel well.
Can mediastinal lymphadenopathy go away on its own?
Reactive lymph nodes from a viral or bacterial infection sometimes shrink back over weeks to months. Lymph nodes due to TB, sarcoidosis, lymphoma, or cancer do not reliably go away without treatment. Because imaging cannot tell which cause is which, 'watch and see' is only safe in a small subset of cases, decided by your treating doctor.
If you are reading this with a CT report in front of you that mentions mediastinal lymphadenopathy, you now have language for what is coming next. The procedure is shorter, safer, and less dramatic than the word "biopsy" makes it sound. The harder part is the wait between the scan and the answer.
If you have been referred for a mediastinal lymph node biopsy in Hyderabad and want to discuss your CT findings before deciding next steps, book a consultation with Dr. Kunal Waghray at our Basheer Bagh or Jubilee Hills clinic. Bring the films.
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