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Have small blister on knuckles. Have an inexplicable smooth skin growth. What is this?

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Practicing since : 2010
Answered : 5783 Questions
I have small white blister type spots on TJ knuckles of mainly my right hand. And a small cluster of them jus below my right middle finger knuckle. They do not hurt or leak whatsoever. Also on my right hand middle finger I have an inexplicable smooth skin growth. It wont go away. I wish I could take a picture and show you My dermatologist doesn't know what it is.
Posted Thu, 11 Jul 2013 in General Health
Answered by Dr. Rahul Kumar 55 minutes later
Thanks for the query.
Blisters can appear in allergic contact dermatitis as well as conditions like Epidermolysis bullosa acquisita.
This is a rare condition but I am keeping it as differential, because you mentioned blistering on knuckles which are prone to injury.
I would also like to see how the smooth skin growth appears like.

You can surely take a picture and send me.

You have a feature to upload the reports / image by yourself at the right side of the query page, please utilize that so that I can answer your queries better. You can also send the reports/ image to YYYY@YYYY with the subject as 'ATTN: Dr. Rahul Kumar'."

Kindly utilize this facility so I can come to a closer diagnosis and give you a better line of treatment.

Waiting for your response.
Thank you
Above answer was peer-reviewed by
Follow-up: Have small blister on knuckles. Have an inexplicable smooth skin growth. What is this? 8 hours later
I have uploaded the pictures.
Answered by Dr. Rahul Kumar 3 hours later
Thanks for the photographs.
I could see the blisters but the white thickened skin which you mentioned is not visible. It may be related to this blistering condition only.
I request you to answer the following questions.
1. Since when you have there blisters? Is this the first time or you keep getting them.
2.Did you get them after genital herpes?
3.Do you have similar lesions on palms and soles ?
4. Are you prone to develop blisters at any site of injury?
5. Do you have photo sensitivity or recurrent oral ulcers?
6. Is there any scarring on the fingers?
Sorry for asking so many questions, but it is necessary to reach a diagnosis.
Waiting for your response.
Thank you.
Above answer was peer-reviewed by
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