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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Is The Cause Of A Hard Knot Under The Jaw?

Hi my name is jeleesa and I have a 5 year old son, that fights with his older brother alot just yesterday he said that they bumped heads while playing but the next morning a hard painless knot almost the size of a golf ball appeared under the left side of his jaw what is that? Please help me
Fri, 13 Mar 2015
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Pediatrician, Cardiology 's  Response
Hello

The swelling below the jaw may be hematoma due to injury.You said that the trauma was on head and the site of swelling is around jaw.
This swelling may be unrelated to the trauma.The most common cause of swelling below the jaw is lymph node swelling. Uncommon cause is swelling of salivary gland.
Sometimes swelling may remain unnoticed and it is detected incidently.
I would request you to consult a pediatrician for proper evaluation of the swelling and management accordingly.
Regards
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What Is The Cause Of A Hard Knot Under The Jaw?

Hello The swelling below the jaw may be hematoma due to injury.You said that the trauma was on head and the site of swelling is around jaw. This swelling may be unrelated to the trauma.The most common cause of swelling below the jaw is lymph node swelling. Uncommon cause is swelling of salivary gland. Sometimes swelling may remain unnoticed and it is detected incidently. I would request you to consult a pediatrician for proper evaluation of the swelling and management accordingly. Regards