Mucous Cyst: Some times a small bone spur can form on the last joint of the finger. This can rub on the tendon and cause a small cyst to form. They are usually hard or firm, and contain clear jelly like fluid. The stretching of the skin causes the clear appearence. Do not puncture this with a needle. It could lead to a joint infection. If bothersome, see a hand surgeon.
Answered 8/11/2018
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Mucous cyst: if on dorsal finger just prox. to nail it is a mucous cyst originating from the DIP joint. Do not puncture this as you will cause a septic joint. If cyst painful and will not go away I would excise the ganglion, a simple operation. Mucous cyst is the same as a ganglion only at the finger DIP joint
Answered 9/11/2018
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