
Is A Small Painful Bruise On Upper Back A Concern?

Most probably a sebaceous cyst
Detailed Answer:
Hi.
Thanks for your query.
To recapitulate: Female/58 - had small hard lump on upper back - 8 months - no symptoms - small flat oval this week - small pain like new bruise ...
As per the history you have provided the commonest cause is a sebaceous cyst as it can grow gradually without any pain or tenderness. And can change over to the present status as you have explained. Mild inflammation or infection can cause liquefaction and the shape transformed into a flattened oval and have mild pain as well.
I would advise you the following in such a situation:
Consult a General Surgeon or a Dermatologist as may be the system in your country - your Family Doctor will help you with the reference and get this operated for the following reasons:
1) you get rid of the disease that is not a normal part of the body.
2) You get correct diagnosis by histo-path examination of the removed lump.
3 As the lump is on the upper back, it does come under the pressure zone as it will rub on sofa/chair and bed; hence best to get rid of any lump on the back.
I hope this answer helps you, please feel free to ask for further relevant queries if you feel that there is a gap of communication.

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