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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes A Hard Lump On The Knee With Blackness After A Fall?

Hi,

The problem is with my knee. About a month or so ago, I feel (not really hard) but I fell on my knee and now there is a small painless lump there on the right side of the kneecap. What do you think it could be? The spot was black and blue for a long time after I fell.
Fri, 11 Apr 2014
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General Surgeon,  's  Response
Hi ! Good morning. i am Dr Shareef answering your query.

The lump initially must have been a collection of blood (hematoma) in the superficial tissue giving it the colour of black and blue. After the acute stage, and RBCs being absorbed, only serum remains, and this could have formed a serous cyst which persisted as a painless lump. This too could get absorbed gradually. In case it persists,or increases in size, you might have to consult a general surgeon/orthopedic surgeon in your area for further management.

I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts.
Thanks for choosing health care magic to clear doubts on your health problems. Wishing you an early recovery. Dr Shareef.
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What Causes A Hard Lump On The Knee With Blackness After A Fall?

Hi ! Good morning. i am Dr Shareef answering your query. The lump initially must have been a collection of blood (hematoma) in the superficial tissue giving it the colour of black and blue. After the acute stage, and RBCs being absorbed, only serum remains, and this could have formed a serous cyst which persisted as a painless lump. This too could get absorbed gradually. In case it persists,or increases in size, you might have to consult a general surgeon/orthopedic surgeon in your area for further management. I hope this information would help you in discussing with your family physician/treating doctor in further management of your problem. Please do not hesitate to ask in case of any further doubts. Thanks for choosing health care magic to clear doubts on your health problems. Wishing you an early recovery. Dr Shareef.