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Possible reasons for bumps on thumb under the cuticle - Online Doctor Chats

Date : 21-Feb-2012
User rating for this question
Excellent Posted in: Bones, Muscles and Joints
Answered by

General & Family Physician
Practicing since : 2004
Answered : 36 Questions
User :   I have noticed a small, growing bump growing from under the cuticle outward toward the front of my thumb nails on each hand. The one on the left is quite large and the one on the right is still growing. it is hard, not sore, does not hurt to touch. Just curious. I usually wear acrylic nails but haven't in a while, but not sure what the drill will do to these bumps.
Doctor :   Hi
User :   okay
Doctor :   Pls. give me few seconds to go through your query.
Doctor :   May i ask you a few questions to answer you better ?
User :   Certainly
Doctor :   May I know your age please and since when or how long you are having this problem ?
User :   I am a very healthy 64-y-old woman, and take no daily medications, and this on the left thumbnail has been there for about a month, when all of a sudden the right thumbnail is starting to produce the same bump.
Doctor :   Ok.
Doctor :   May I know if you have any history of Diabetes ?
Doctor :   And are teh bumps painful ?
User :   No history of diabetes, HBP, or other sytemic illnesses. The bumps are not painful, and you really can't see them, but I feel them.
Doctor :   Ok.
Doctor :   Are they soft or hard ? What is their consistency , liquid like inside or bubble like , etc ?
User :   The bump is hard, no consistency, no liquid, no bubble, it is clear in color as is the nail.
User :   Not movable either. Just eminating from the nailbed at the cuticle level and getting bigger.
Doctor :   Ok.
Doctor :   I would categorise the lump into the following differential diagnosis : User :   It does not hurt when I press down on it, nor does it go away or discolor in anyway. Almost like a hard pimple under the nailbed.
Doctor :   Ok.
User :   diagnos awa
User :   Diagnose away
Doctor :   I am putting a differential diagnosis ,
Doctor :   which means the near possibilities.
User :   I was a nurse for 20 years, and in the medical field for another 20 so I understand completely
Doctor :   it can be zeroed on with some more help like investigations & punch biopsy.
Doctor :   1. Ganglion Cyst is the first possibility.
Doctor :   2.Masson's tumor
Doctor :   3. A certain type of wart .
Doctor :   4. A Callus formation.
Doctor :   All these can be diagnosed upon by a simple punch biopsy or excision biopsy, but I would suggest if at all that is painful.
User :   I don't know much about ganglions, other than on the wrists, a wart, I doubt, callus, is from constant irritation, or wearing as in the acrylic nails, and I don't know about the tumor. I will do some of my own research from what you have said. I will not do anything painful. Mahalo from Hawaii.
Doctor :   Please do also check your recent lipedemic state as in some people hyperlipedemic states show up as bumps on distal part of the fingers.
Doctor :   6.A rare disease called histiocytosis may also cause lumps to appear in the distal row of finger joints. Diagnosis is made by biopsy. Treatment is usually symptomatic although in its severe forms histiocytosis may be treated with chemotherapeutic agents.
Doctor :   7.Plant thorn synovitis is a relatively common problem that may occur in people who grow rose bushes. Here a thorn from a rose bush may break off in the joint and cause a localized inflammation of the finger joint. This condition often requires surgery for both diagnosis as well as treatment. Infections of the finger joints are cause of finger bumps and must be treated aggressively.
Doctor :   All the best in your research and hope the problem is sorted out soon and you get the right treatment for your problem.
User :   I love all these suggestions, except no Roses. Thanks again so much. It was well worth talking with you.
Doctor :   Thank you for consulting me.
Doctor :   Take care .
Doctor :   Bye for now.
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