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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Blister Like Lumps On The Elbow And Behind The Knee?

My 4 year old son has blister looking bumps behind his right knee and on his left elbow crease. They seem to come and go. I am not sure exactly what they are. A few years ago he had some sores around his mouth and I took him to the doctor and they said it was HSV. They didn t give him any medications because he had already been dealing with it for 1 week. Do you think the blister looking bumps could be part of that virus?
Fri, 22 Mar 2019
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Neurologist 's  Response
Hello,

It is unlikely for those bumps to be due to herpes simplex virus, the location and distribution are not typical for herpes infection.

As for what they actually are it is difficult to say without being able to examine them.

A fungal infection or autoimmune origin are common possibilities but should be seen by his pediatrician.

Hope I have answered your query. Let me know if I can assist you further.

Take care

Regards,
Dr Olsi Taka, Neurologist
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What Causes Blister Like Lumps On The Elbow And Behind The Knee?

Hello, It is unlikely for those bumps to be due to herpes simplex virus, the location and distribution are not typical for herpes infection. As for what they actually are it is difficult to say without being able to examine them. A fungal infection or autoimmune origin are common possibilities but should be seen by his pediatrician. Hope I have answered your query. Let me know if I can assist you further. Take care Regards, Dr Olsi Taka, Neurologist