Understanding EUS
Endoscopic Ultrasound (EUS) is an advanced procedure that combines endoscopy with high-frequency ultrasound imaging to examine the digestive tract and nearby organs. It can provide detailed images of structures such as the pancreas, bile ducts, liver, gallbladder and surrounding lymph nodes.
Because the ultrasound probe is positioned close to the organs being examined, EUS can provide detailed information about abnormalities that may not be fully characterised through routine endoscopy or external imaging alone. It can also be used to obtain tissue samples when required.
For patients seeking EUS in Mumbai, Dr. Chetan Kalal provides specialist hepatology assessment to determine whether EUS is appropriate for evaluating a suspected liver, biliary, pancreatic or gastrointestinal condition.
Dr. Chetan Kalal: Expertise in Advanced Hepatology & Endoscopic Evaluation
Dr. Chetan Kalal is a DM Hepatologist with 15+ years of experience managing complex liver and hepatobiliary conditions. Recognised as Maharashtra’s first DM Hepatologist, he completed his DM Hepatology training at ILBS, New Delhi, under Prof. S. K. Sarin. His experience in advanced liver and biliary disorders helps determine when detailed endoscopic ultrasound assessment may be useful as part of a patient’s overall evaluation.
15+ Years of Experience
Expertise in complex liver and digestive disorders.
First DM Hepatologist in Maharashtra
Specialist hepatology training from ILBS, New Delhi.
Advanced Hepatobiliary Expertise
Experience evaluating conditions involving the liver, bile ducts and pancreas.
Liver Transplant Expertise
Experience managing advanced liver disease and transplant-related conditions.
Your EUS Evaluation Starts With Understanding What Needs to Be Examined
EUS is not required for every patient with abdominal symptoms or an abnormal scan. The decision depends on the clinical findings, previous investigations and the specific organ or abnormality that requires closer assessment. The evaluation focuses on:
EUS in Mumbai: Understanding How the Procedure Works
EUS combines endoscopy with ultrasound imaging, allowing structures around the digestive tract to be examined from close range.
Endoscopic Access
A flexible endoscope with an ultrasound probe is passed through the mouth or, for selected lower digestive tract examinations, through the rectum.
Close-Range Ultrasound
The ultrasound probe creates detailed images of organs and structures located close to the digestive tract.
Detailed Assessment
The procedure can help assess the size, location and characteristics of lesions, cysts, stones, duct abnormalities and lymph nodes.
Tissue Sampling
When required, a fine needle can be guided through the endoscope under ultrasound visualisation to obtain a tissue or fluid sample.
What Can EUS Help Identify?
EUS can provide detailed information about several conditions involving the digestive tract and nearby organs.
When Should You Seek Specialist for EUS ?
EUS may be considered when symptoms, laboratory findings or previous imaging suggest an abnormality that requires more detailed assessment. It may be recommended when there is:
- Unclear Pancreatic Lesion - A pancreatic abnormality requires closer imaging or tissue assessment.
- Suspected Bile Duct Stone - A possible bile duct stone needs further evaluation when other imaging is inconclusive.
- Pancreatic Cyst - A cystic pancreatic lesion requires assessment of its features and possible risk.
- Bile Duct Abnormality - Narrowing, dilation or another unexplained change requires detailed evaluation.
- Suspicious Lymph Node - An enlarged or abnormal lymph node may require imaging and tissue sampling.
- Unexplained Digestive Findings - A lesion or abnormality requires closer assessment after initial investigations.
Building a Diagnostic Strategy Around the Finding
The role of EUS depends on what previous investigations have shown and what additional information is needed.
Clarifying Pancreatic Findings
EUS can provide detailed imaging of pancreatic lesions, cysts and duct abnormalities that may require further characterisation.
Evaluating the Bile Ducts
The bile ducts can be examined closely for stones, narrowing, dilation or other structural abnormalities.
Assessing Tissue Characteristics
EUS can provide detailed information about the appearance and extent of selected lesions and surrounding structures.
Obtaining Tissue Samples
When indicated, fine-needle aspiration or biopsy can be performed under ultrasound guidance to support a tissue diagnosis.
Examining Nearby Lymph Nodes
Suspicious lymph nodes can be assessed and sampled when their diagnosis may influence further treatment planning.
Guiding Further Management
EUS findings can help determine whether a patient requires surveillance, additional imaging, endoscopic treatment, surgery or another form of specialist care.
The procedure is planned after reviewing the patient’s symptoms, medical history and previous imaging or laboratory findings.
Relevant medical conditions, medicines and previous investigations are reviewed before the procedure.
EUS is generally performed under appropriate sedation or anaesthesia to allow the examination to be completed comfortably.
The ultrasound endoscope is guided to the area requiring assessment through the upper or lower digestive tract, depending on the planned examination.
High-frequency ultrasound is used to examine the target organ, lesion, duct or surrounding structure in detail.
Frequently Asked Questions
What is EUS used for?
EUS is used to obtain detailed ultrasound images of the digestive tract and nearby organs such as the pancreas, bile ducts, liver and surrounding lymph nodes. It can also guide tissue or fluid sampling when required.
Is EUS different from a regular endoscopy?
Yes. A regular endoscopy primarily examines the inner lining of the digestive tract, while EUS also uses an ultrasound probe to examine structures within and around the digestive tract.
Can EUS detect pancreatic problems?
EUS can provide detailed images of the pancreas and may help assess cysts, masses, duct abnormalities and other pancreatic findings. Selected lesions can also be sampled during the procedure.
How long does it take to recover after EUS?
Recovery depends on the type of EUS and whether tissue sampling was performed. Most patients are observed until the effects of sedation wear off before being discharged with post-procedure instructions.
Can tissue be taken during EUS?
Yes. When clinically appropriate, fine-needle aspiration or biopsy can be performed under ultrasound guidance to obtain tissue or fluid for laboratory examination.
Is EUS performed under anaesthesia?
EUS is generally performed with sedation or anaesthesia, depending on the type of examination and whether an intervention such as tissue sampling is planned.
