Post-Endoscopy Swelling: a New Lump Near the Collarbone

After undergoing an upper gastrointestinal endoscopy in the morning, a lump suddenly appeared in the clavicular area in the afternoon?

Hello doctor, I had an upper gastrointestinal endoscopy on December 20th at 10 AM.
After the procedure, I experienced some throat pain.
Around 4 PM that day, a lump appeared on the left side of my clavicle.
It is not painful, but it has not gone away and is gradually increasing in size.
It is now about the size of an egg.
Could you please explain why this is happening? Is there any urgent danger associated with it?

Kang, 60~69 year old female. Ask Date: 2021/12/20

Dr. Chen Shidian reply Gastroenterology and Hepatology

Please schedule a medical examination.

Reply Date: 2021/12/20

More Info

Dear Patient,
Thank you for reaching out regarding your concerns about the new lump near your collarbone following your endoscopy. It's understandable to feel anxious when noticing changes in your body, especially after a medical procedure. Let’s break down your situation and address your questions.

First, it’s important to recognize that post-endoscopy swelling can occur for several reasons. The endoscopic procedure itself can sometimes lead to localized swelling or inflammation in the throat or surrounding areas due to irritation from the instruments used or the anesthesia administered. This is typically a benign reaction and should gradually resolve over time.

However, the lump you described, which has grown to the size of an egg, warrants further evaluation. While it may be related to the procedure, there are other potential causes that should be considered:
1. Lymphadenopathy: The lymph nodes in the area can become swollen due to various reasons, including infection or inflammation. If your body is responding to any irritation or infection, the lymph nodes may react by enlarging.

2. Cyst Formation: Sometimes, cysts can form in response to irritation or blockage of glands in the area. These are usually benign but can cause concern if they grow larger or become symptomatic.

3. Infection: If there is an underlying infection, it could lead to swelling and the formation of a lump. This could be due to a localized infection or a systemic response to a more widespread issue.

4. Other Causes: While less common, other conditions such as tumors (benign or malignant) could also present as a lump. Given your recent medical history, it’s crucial to rule out any serious conditions.

Regarding the urgency of your situation, while the lump is not painful, which is a positive sign, its rapid growth is concerning. It is essential to have it evaluated by a healthcare professional as soon as possible. They may recommend imaging studies, such as an ultrasound or CT scan, to assess the nature of the lump and determine the appropriate course of action.

In summary, while post-endoscopy swelling can be a normal reaction, the significant growth of the lump near your collarbone should not be ignored. I recommend scheduling an appointment with your healthcare provider promptly to discuss your symptoms and undergo a thorough examination. Early evaluation can help ensure that any potential issues are addressed quickly and effectively.

Take care, and I hope you find relief soon.

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